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How to install KVM Kernel-based Virtual Machine Virtualization on Linux

Sunday, October 14th, 2018

install-KVM-Kernel-based-Virtual-Machine-virtualization-on-Linux

If you want to run multiple virtual machines on GNU / Linux server or your Linux powered Desktop you have the possibility to use a couple of Virtual Machines just to name a few VirtualBox and VMWare are the option the native way to do it is using the Linux kernel via a loadable kernel module called KVM (Kernel-based Virtual Machine).
Though Oracle's Virtualbox generally works and you could add new test beds virtual machines (install multiple Linux / *BSD OS) it is not fully Free Software and not even fully open source licensed, VMWare even though superior as a Virtualization product is proprietary and its application costs a lot of money which not each develpoper or small / mid-sized company could afford.

Once the kvm.ko module is loaded your Linux kernel turns into a full-featured Virtual Machine Hypervisor.
Starting with Linux kernel 2.6.X the KVM Hypervisor is available and easy to install virtually all modern Linux distributions Redhat / CentOS Debian / Ubuntu etc. support it and its up to running few commands to install and start using the Power of Kernel embedded Virtualization.

KVM could be used to run in parallel multiple Operating Systems such as Windows / Linux / FreeBSD and others of BSDs family, each running under a separate virtual machine with its private dedicated (isolated), disc, graphic card, network card etc.

To start up I assume you have already installed some kind of Linux distribution either locally or on a remote dedicated server.

1. Installing KVM on Debian GNU / Linux / Ubuntu / Mint and other deb based distros

Using APT tool install below packages:

root@jeremiah:~# apt install –yes qemu-kvm libvirt-clients libvirt-daemon-system bridge-utils libguestfs-tools genisoimage virtinst libosinfo-bin

2. Installing virt-manager GUI to manage Virtual servers

root@jeremiah:~# apt-cache show virt-manager|grep -i desc -A 1
Description-en: desktop application for managing virtual machines
It presents a summary view of running domains and their live performance &
—
Description-md5: 9f7f584744b77cdacc2291f2a8ac220e
Homepage: http://virt-manager.et.redhat.com/

root@jeremiah:~# apt install –yes virt-manager

virtual-manager-fedora-28-linux-virtual-machine-settings-screenshot

3. Configure bridged networking to allow access to newly configured VMs

Bridging has to be added via /etc/network/interfaces therefore it is a good idea to create a backup of it before modifying:

# cp -rpf /etc/network/interfaces /etc/network/interfaces.bakup-$(echo $(date '+%Y-%m-%d-%H'))

# vim /etc/network/interfaces

auto br0
iface br0 inet static
         address 10.15.44.26
         netmask 255.255.255.192
         broadcast 10.15.44.63
         dns-nameservers 10.0.80.11 10.0.80.12
         # set static route for LAN
    post-up route add -net 10.0.0.0 netmask 255.0.0.0 gw 10.18.44.1
    post-up route add -net 161.26.0.0 netmask 255.255.0.0 gw 10.18.44.1
         bridge_ports eth0
         bridge_stp off
         bridge_fd 0
         bridge_maxwait 0

# br1 setup with static wan IPv4 with ISP router as a default gateway
auto br1
iface br1 inet static
         address 192.168.222.51
         netmask 255.255.255.248
         broadcast 192.168.222.55
         gateway 192.168.222.49
         bridge_ports eth1
         bridge_stp off
         bridge_fd 0
         bridge_maxwait 0

Once file is saved in vim editor restart the networking.

# systemctl restart network.manager

To verify whether the bridge has been succesfully upped.

root@jeremiah:/home/hipo/kvm# brctl show
bridge name bridge id STP enabled interfaces
virbr0 8000.525400cb1cd1 yes virbr0-nic

4. List all installable Virtual OS images

root@jeremiah:/home/hipo/kvm# virt-builder -list
centos-6                 x86_64     CentOS 6.6
centos-7.0               x86_64     CentOS 7.0
centos-7.1               x86_64     CentOS 7.1
centos-7.2               aarch64    CentOS 7.2 (aarch64)
centos-7.2               x86_64     CentOS 7.2
centos-7.3               x86_64     CentOS 7.3
centos-7.4               x86_64     CentOS 7.4
centos-7.5               x86_64     CentOS 7.5
cirros-0.3.1             x86_64     CirrOS 0.3.1
cirros-0.3.5             x86_64     CirrOS 0.3.5
debian-6                 x86_64     Debian 6 (Squeeze)
debian-7                 sparc64    Debian 7 (Wheezy) (sparc64)
debian-7                 x86_64     Debian 7 (wheezy)
debian-8                 x86_64     Debian 8 (jessie)
debian-9                 x86_64     Debian 9 (stretch)
fedora-18                x86_64     Fedora® 18
fedora-19                x86_64     Fedora® 19
fedora-20                x86_64     Fedora® 20
fedora-21                aarch64    Fedora® 21 Server (aarch64)
fedora-21                armv7l     Fedora® 21 Server (armv7l)
fedora-21                ppc64      Fedora® 21 Server (ppc64)
fedora-21                ppc64le    Fedora® 21 Server (ppc64le)
fedora-21                x86_64     Fedora® 21 Server
fedora-22                aarch64    Fedora® 22 Server (aarch64)
fedora-22                armv7l     Fedora® 22 Server (armv7l)
fedora-22                i686       Fedora® 22 Server (i686)
fedora-22                x86_64     Fedora® 22 Server
fedora-23                aarch64    Fedora® 23 Server (aarch64)
fedora-23                armv7l     Fedora® 23 Server (armv7l)
fedora-23                i686       Fedora® 23 Server (i686)
fedora-23                ppc64      Fedora® 23 Server (ppc64)
fedora-23                ppc64le    Fedora® 23 Server (ppc64le)
fedora-23                x86_64     Fedora® 23 Server
fedora-24                aarch64    Fedora® 24 Server (aarch64)
fedora-24                armv7l     Fedora® 24 Server (armv7l)
fedora-24                i686       Fedora® 24 Server (i686)
fedora-24                x86_64     Fedora® 24 Server
fedora-25                aarch64    Fedora® 25 Server (aarch64)
fedora-25                armv7l     Fedora® 25 Server (armv7l)
fedora-25                i686       Fedora® 25 Server (i686)
fedora-25                ppc64      Fedora® 25 Server (ppc64)
fedora-25                ppc64le    Fedora® 25 Server (ppc64le)
fedora-25                x86_64     Fedora® 25 Server
fedora-26                aarch64    Fedora® 26 Server (aarch64)
fedora-26                armv7l     Fedora® 26 Server (armv7l)
fedora-26                i686       Fedora® 26 Server (i686)
fedora-26                ppc64      Fedora® 26 Server (ppc64)
fedora-26                ppc64le    Fedora® 26 Server (ppc64le)
fedora-26                x86_64     Fedora® 26 Server
fedora-27                aarch64    Fedora® 27 Server (aarch64)
fedora-27                armv7l     Fedora® 27 Server (armv7l)
fedora-27                i686       Fedora® 27 Server (i686)
fedora-27                ppc64      Fedora® 27 Server (ppc64)
fedora-27                ppc64le    Fedora® 27 Server (ppc64le)
fedora-27                x86_64     Fedora® 27 Server
fedora-28                i686       Fedora® 28 Server (i686)
fedora-28                x86_64     Fedora® 28 Server
freebsd-11.1             x86_64     FreeBSD 11.1
scientificlinux-6        x86_64     Scientific Linux 6.5
ubuntu-10.04             x86_64     Ubuntu 10.04 (Lucid)
ubuntu-12.04             x86_64     Ubuntu 12.04 (Precise)
ubuntu-14.04             x86_64     Ubuntu 14.04 (Trusty)
ubuntu-16.04             x86_64     Ubuntu 16.04 (Xenial)
ubuntu-18.04             x86_64     Ubuntu 18.04 (bionic)
opensuse-13.1            x86_64     openSUSE 13.1
opensuse-13.2            x86_64     openSUSE 13.2
opensuse-42.1            x86_64     openSUSE Leap 42.1
opensuse-tumbleweed      x86_64     openSUSE Tumbleweed

5. Create Virtual Machine OS-es from scratch with virt-builder

Below we'll create two images one for Fedora 28 and 1 for Debian 9 using the virt-builder (a tool to build virtual images quickly), the images that could be used are shown through below virt-builder –list command.

# iso='fedora-28';
# iso1='debian-9';

# sudo virt-builder $iso \
   –size=10G \
   –format qcow2 -o /var/lib/libvirt/images/$iso-vm1.qcow2 \
   –hostname $iso-vm1 \
   –network \
   –timezone Europe/Sofia

[   3.3] Downloading: http://libguestfs.org/download/builder/fedora-28.xz
[   5.2] Planning how to build this image
[   5.2] Uncompressing
[ 20.8] Resizing (using virt-resize) to expand the disk to 10.0G
[ 50.8] Opening the new disk
[ 53.7] Setting a random seed
[ 53.7] Setting the hostname: fedora-28-vm1
[ 53.7] Setting the timezone: Europe/Sofia
[ 53.7] Setting passwords
virt-builder: Setting random password of root to YMTkxaJIkEU24Ytf
[ 54.7] Finishing off
                   Output file: /var/lib/libvirt/images/fedora-28-vm1.qcow2
                   Output size: 10.0G
                 Output format: qcow2
            Total usable space: 9.3G
                    Free space: 8.2G (87%)

# sudo virt-builder $iso1 \
   –size=10G \
   –format qcow2 -o /var/lib/libvirt/images/$iso-vm1.qcow2 \
   –hostname $iso1-vm1 \
   –network \
   –timezone Europe/Sofia

[   3.2] Downloading: http://libguestfs.org/download/builder/debian-9.xz
[   4.1] Planning how to build this image
[   4.1] Uncompressing
[ 16.9] Resizing (using virt-resize) to expand the disk to 10.0G
[ 40.1] Opening the new disk
[ 42.9] Setting a random seed
virt-builder: warning: random seed could not be set for this type of guest
[ 42.9] Setting the hostname: debian-9-vm1
[ 43.6] Setting the timezone: Europe/Sofia
[ 43.6] Setting passwords
virt-builder: Setting random password of root to JtzEYGff9KxL5jCR
[ 44.3] Finishing off
                   Output file: /var/lib/libvirt/images/debian-9-vm1.qcow2
                   Output size: 10.0G
                 Output format: qcow2
            Total usable space: 9.8G
                    Free space: 9.0G (91%)

vim bridged.xml

# sudo virsh net-define –file bridged.xml
# sudo virsh net-autostart br0
# sudo virsh net-start br0

Above two commands will download pre-packaged KVM isos and store them inside /var/lib/libvirt/images/ you see also the root (administrator) password for both ISOs printed out.

root@jeremiah:/home/hipo/kvm# ls -ld /var/lib/libvirt/images/*
-rw-r–r– 1 root root 10739318784 Oct 12 23:45 /var/lib/libvirt/images/debian-9-vm1.qcow2
-rw-r–r– 1 root root 10739318784 Oct 12 23:46 /var/lib/libvirt/images/fedora-28-vm1.qcow2

To access directly the new created VMs as we have specified the –vnc option it is possible to directly vnc to the new host with VNC client (in linux I use vncviewer), on Windows you can use something like TightVNC.

6. Use official Linux distributions ISO boot files to install into KVM VM

Those who would like to run inside KVM VM Linux could do it directly using installable ISO files and install the set of Linux with the required packages, just like installing a fresh new Linux on a bare-metal machine.
To do so download your ISO image from the net (either from official distro website or a mirror website, in case if you need to spin an older version) and use virt-install to run the installer inside KVM.

root@jeremiah:~# cd /var/lib/libvirt/boot/;
root@jeremiah:~# wget http://mirrors.netix.net/centos/7.5.1804/isos/x86_64/CentOS-7-x86_64-DVD-1804.iso
…

# sudo virt-install \
–virt-type=kvm \
–name centos7 \
–ram 2048 \
–vcpus=2 \
–os-variant=centos7.0 \
–virt-type=kvm \
–hvm \
–cdrom=/var/lib/libvirt/boot/CentOS-7-x86_64-DVD-1804.iso \
–network=bridge=br0,model=virtio \
–network=bridge=br1,model=virtio \
–graphics vnc \
–disk path=/var/lib/libvirt/images/centos7.qcow2,size=40,bus=virtio,format=qcow2

7. List newly created VMs with Virsh command

root@jeremiah:/home/hipo/kvm# virsh list –all
Id    Name                           State
—————————————————-
3     fedora-28                      running
–     debian9                        shut off

The –all parameter lists all available VMs ready to spin, if you want to check what are the VMs that are only running use instead:

root@jeremiah:/home/hipo/kvm# virsh list
Id Name State
—————————————————-
3 fedora-28 running

8. Install Virtual Machine OS-es

Below lines will install 2 Virtual machines one Fedora 28 and Debian 9

os='fedora-28';
virt-install –import –name $os \
   –ram 2048 \
   –vcpu 2 \
   –disk path=/var/lib/libvirt/images/$os-vm1.qcow2,format=qcow2 \
   –os-variant fedora-unknown \
   –network=bridge=br0,model=virtio \
    –noautoconsole \
–hvm \
–graphics vnc

os='debian9';
virt-install –import –name $os     \
–ram 2048     \
–vcpu 2     \
–disk path=/var/lib/libvirt/images/$os-vm1.qcow2,format=qcow2     \
–os-variant debian9     –network=bridge=br0,model=virtio     \
–noautoconsole \
–hvm \
–graphics vnc

To deploy more just change the virtual machine type in os variable and modify the –os-variant variable to match the distribution name, to get the correct –os-variant variables that can be passed use osinfo-query below is output of the cmd:

root@jeremiah:/home/hipo/kvm# osinfo-query os
Short ID             | Name                                               | Version | ID
———————-+—————————————————-+———-+—————————————–
altlinux1.0          | Mandrake RE Spring 2001                            | 1.0      | http://altlinux.org/altlinux/1.0
altlinux2.0          | ALT Linux 2.0                                      | 2.0      | http://altlinux.org/altlinux/2.0
altlinux2.2          | ALT Linux 2.2                                      | 2.2      | http://altlinux.org/altlinux/2.2
altlinux2.4          | ALT Linux 2.4                                      | 2.4      | http://altlinux.org/altlinux/2.4
altlinux3.0          | ALT Linux 3.0                                      | 3.0      | http://altlinux.org/altlinux/3.0
altlinux4.0          | ALT Linux 4.0                                      | 4.0      | http://altlinux.org/altlinux/4.0
altlinux4.1          | ALT Linux 4.1                                      | 4.1      | http://altlinux.org/altlinux/4.1
altlinux5.0          | ALT Linux 5.0                                      | 5.0      | http://altlinux.org/altlinux/5.0
altlinux6.0          | ALT Linux 6.0                                      | 6.0      | http://altlinux.org/altlinux/6.0
altlinux7.0          | ALT Linux 7.0                                      | 7.0      | http://altlinux.org/altlinux/7.0
centos6.0            | CentOS 6.0                                         | 6.0      | http://centos.org/centos/6.0
centos6.1            | CentOS 6.1                                         | 6.1      | http://centos.org/centos/6.1
centos6.2            | CentOS 6.2                                         | 6.2      | http://centos.org/centos/6.2
centos6.3            | CentOS 6.3                                         | 6.3      | http://centos.org/centos/6.3
centos6.4            | CentOS 6.4                                         | 6.4      | http://centos.org/centos/6.4
centos6.5            | CentOS 6.5                                         | 6.5      | http://centos.org/centos/6.5
centos6.6            | CentOS 6.6                                         | 6.6      | http://centos.org/centos/6.6
centos6.7            | CentOS 6.7                                         | 6.7      | http://centos.org/centos/6.7
centos6.8            | CentOS 6.8                                         | 6.8      | http://centos.org/centos/6.8
centos6.9            | CentOS 6.9                                         | 6.9      | http://centos.org/centos/6.9
centos7.0            | CentOS 7.0                                         | 7.0      | http://centos.org/centos/7.0
debian1.1            | Debian Buzz                                        | 1.1      | http://debian.org/debian/1.1
debian1.2            | Debian Rex                                         | 1.2      | http://debian.org/debian/1.2
debian1.3            | Debian Bo                                          | 1.3      | http://debian.org/debian/1.3
debian2.0            | Debian Hamm                                        | 2.0      | http://debian.org/debian/2.0
debian2.1            | Debian Slink                                       | 2.1      | http://debian.org/debian/2.1
debian2.2            | Debian Potato                                      | 2.2      | http://debian.org/debian/2.2
debian3              | Debian Woody                                       | 3        | http://debian.org/debian/3
debian3.1            | Debian Sarge                                       | 3.1      | http://debian.org/debian/3.1
debian4              | Debian Etch                                        | 4        | http://debian.org/debian/4
debian5              | Debian Lenny                                       | 5        | http://debian.org/debian/5
debian6              | Debian Squeeze                                     | 6        | http://debian.org/debian/6
debian7              | Debian Wheezy                                      | 7        | http://debian.org/debian/7
debian8              | Debian Jessie                                      | 8        | http://debian.org/debian/8
debian9              | Debian Stretch                                     | 9        | http://debian.org/debian/9
debiantesting        | Debian Testing                                     | testing | http://debian.org/debian/testing
fedora-unknown       | Fedora                                             | unknown | http://fedoraproject.org/fedora/unknown
fedora1              | Fedora Core 1                                      | 1        | http://fedoraproject.org/fedora/1
fedora10             | Fedora 10                                          | 10       | http://fedoraproject.org/fedora/10
fedora11             | Fedora 11                                          | 11       | http://fedoraproject.org/fedora/11
fedora12             | Fedora 12                                          | 12       | http://fedoraproject.org/fedora/12
fedora13             | Fedora 13                                          | 13       | http://fedoraproject.org/fedora/13
fedora14             | Fedora 14                                          | 14       | http://fedoraproject.org/fedora/14
fedora15             | Fedora 15                                          | 15       | http://fedoraproject.org/fedora/15
fedora16             | Fedora 16                                          | 16       | http://fedoraproject.org/fedora/16
fedora17             | Fedora 17                                          | 17       | http://fedoraproject.org/fedora/17
fedora18             | Fedora 18                                          | 18       | http://fedoraproject.org/fedora/18
fedora19             | Fedora 19                                          | 19       | http://fedoraproject.org/fedora/19
fedora2              | Fedora Core 2                                      | 2        | http://fedoraproject.org/fedora/2
fedora20             | Fedora 20                                          | 20       | http://fedoraproject.org/fedora/20
fedora21             | Fedora 21                                          | 21       | http://fedoraproject.org/fedora/21
fedora22             | Fedora 22                                          | 22       | http://fedoraproject.org/fedora/22
fedora23             | Fedora 23                                          | 23       | http://fedoraproject.org/fedora/23
fedora24             | Fedora 24                                          | 24       | http://fedoraproject.org/fedora/24
fedora25             | Fedora 25                                          | 25       | http://fedoraproject.org/fedora/25
fedora26             | Fedora 26                                          | 26       | http://fedoraproject.org/fedora/26
fedora3              | Fedora Core 3                                      | 3        | http://fedoraproject.org/fedora/3
fedora4              | Fedora Core 4                                      | 4        | http://fedoraproject.org/fedora/4
fedora5              | Fedora Core 5                                      | 5        | http://fedoraproject.org/fedora/5
fedora6              | Fedora Core 6                                      | 6        | http://fedoraproject.org/fedora/6
fedora7              | Fedora 7                                           | 7        | http://fedoraproject.org/fedora/7
fedora8              | Fedora 8                                           | 8        | http://fedoraproject.org/fedora/8
fedora9              | Fedora 9                                           | 9        | http://fedoraproject.org/fedora/9
freebsd1.0           | FreeBSD 1.0                                        | 1.0      | http://freebsd.org/freebsd/1.0
freebsd10.0          | FreeBSD 10.0                                       | 10.0     | http://freebsd.org/freebsd/10.0
freebsd10.1          | FreeBSD 10.1                                       | 10.1     | http://freebsd.org/freebsd/10.1
freebsd10.2          | FreeBSD 10.2                                       | 10.2     | http://freebsd.org/freebsd/10.2
freebsd10.3          | FreeBSD 10.3                                       | 10.3     | http://freebsd.org/freebsd/10.3
freebsd10.4          | FreeBSD 10.4                                       | 10.4     | http://freebsd.org/freebsd/10.4
freebsd11.0          | FreeBSD 11.0                                       | 11.0     | http://freebsd.org/freebsd/11.0
freebsd11.1          | FreeBSD 11.1                                       | 11.1     | http://freebsd.org/freebsd/11.1
freebsd2.0           | FreeBSD 2.0                                        | 2.0      | http://freebsd.org/freebsd/2.0
freebsd2.0.5         | FreeBSD 2.0.5                                      | 2.0.5    | http://freebsd.org/freebsd/2.0.5
freebsd2.2.8         | FreeBSD 2.2.8                                      | 2.2.8    | http://freebsd.org/freebsd/2.2.8
freebsd2.2.9         | FreeBSD 2.2.9                                      | 2.2.9    | http://freebsd.org/freebsd/2.2.9
freebsd3.0           | FreeBSD 3.0                                        | 3.0      | http://freebsd.org/freebsd/3.0
freebsd3.2           | FreeBSD 3.2                                        | 3.2      | http://freebsd.org/freebsd/3.2
freebsd4.0           | FreeBSD 4.0                                        | 4.0      | http://freebsd.org/freebsd/4.0
freebsd4.1           | FreeBSD 4.1                                        | 4.1      | http://freebsd.org/freebsd/4.1
freebsd4.10          | FreeBSD 4.10                                       | 4.10     | http://freebsd.org/freebsd/4.10
freebsd4.11          | FreeBSD 4.11                                       | 4.11     | http://freebsd.org/freebsd/4.11
freebsd4.2           | FreeBSD 4.2                                        | 4.2      | http://freebsd.org/freebsd/4.2
freebsd4.3           | FreeBSD 4.3                                        | 4.3      | http://freebsd.org/freebsd/4.3
freebsd4.4           | FreeBSD 4.4                                        | 4.4      | http://freebsd.org/freebsd/4.4
freebsd4.5           | FreeBSD 4.5                                        | 4.5      | http://freebsd.org/freebsd/4.5
freebsd4.6           | FreeBSD 4.6                                        | 4.6      | http://freebsd.org/freebsd/4.6
freebsd4.7           | FreeBSD 4.7                                        | 4.7      | http://freebsd.org/freebsd/4.7
freebsd4.8           | FreeBSD 4.8                                        | 4.8      | http://freebsd.org/freebsd/4.8
freebsd4.9           | FreeBSD 4.9                                        | 4.9      | http://freebsd.org/freebsd/4.9
freebsd5.0           | FreeBSD 5.0                                        | 5.0      | http://freebsd.org/freebsd/5.0
freebsd5.1           | FreeBSD 5.1                                        | 5.1      | http://freebsd.org/freebsd/5.1
freebsd5.2           | FreeBSD 5.2                                        | 5.2      | http://freebsd.org/freebsd/5.2
freebsd5.2.1         | FreeBSD 5.2.1                                      | 5.2.1    | http://freebsd.org/freebsd/5.2.1
freebsd5.3           | FreeBSD 5.3                                        | 5.3      | http://freebsd.org/freebsd/5.3
freebsd5.4           | FreeBSD 5.4                                        | 5.4      | http://freebsd.org/freebsd/5.4
freebsd5.5           | FreeBSD 5.5                                        | 5.5      | http://freebsd.org/freebsd/5.5
freebsd6.0           | FreeBSD 6.0                                        | 6.0      | http://freebsd.org/freebsd/6.0
freebsd6.1           | FreeBSD 6.1                                        | 6.1      | http://freebsd.org/freebsd/6.1
freebsd6.2           | FreeBSD 6.2                                        | 6.2      | http://freebsd.org/freebsd/6.2
freebsd6.3           | FreeBSD 6.3                                        | 6.3      | http://freebsd.org/freebsd/6.3
freebsd6.4           | FreeBSD 6.4                                        | 6.4      | http://freebsd.org/freebsd/6.4
freebsd7.0           | FreeBSD 7.0                                        | 7.0      | http://freebsd.org/freebsd/7.0
freebsd7.1           | FreeBSD 7.1                                        | 7.1      | http://freebsd.org/freebsd/7.1
freebsd7.2           | FreeBSD 7.2                                        | 7.2      | http://freebsd.org/freebsd/7.2
freebsd7.3           | FreeBSD 7.3                                        | 7.3      | http://freebsd.org/freebsd/7.3
freebsd7.4           | FreeBSD 7.4                                        | 7.4      | http://freebsd.org/freebsd/7.4
freebsd8.0           | FreeBSD 8.0                                        | 8.0      | http://freebsd.org/freebsd/8.0
freebsd8.1           | FreeBSD 8.1                                        | 8.1      | http://freebsd.org/freebsd/8.1
freebsd8.2           | FreeBSD 8.2                                        | 8.2      | http://freebsd.org/freebsd/8.2
freebsd8.3           | FreeBSD 8.3                                        | 8.3      | http://freebsd.org/freebsd/8.3
freebsd8.4           | FreeBSD 8.4                                        | 8.4      | http://freebsd.org/freebsd/8.4
freebsd9.0           | FreeBSD 9.0                                        | 9.0      | http://freebsd.org/freebsd/9.0
freebsd9.1           | FreeBSD 9.1                                        | 9.1      | http://freebsd.org/freebsd/9.1
freebsd9.2           | FreeBSD 9.2                                        | 9.2      | http://freebsd.org/freebsd/9.2
freebsd9.3           | FreeBSD 9.3                                        | 9.3      | http://freebsd.org/freebsd/9.3
freedos1.2           | FreeDOS 1.2                                        | 1.2      | http://freedos.org/freedos/1.2
gnome-continuous-3.10 | GNOME 3.10                                         | 3.10     | http://gnome.org/gnome-continuous/3.10
gnome-continuous-3.12 | GNOME 3.12                                         | 3.12     | http://gnome.org/gnome-continuous/3.12
gnome-continuous-3.14 | GNOME 3.14                                         | 3.14     | http://gnome.org/gnome-continuous/3.14
gnome3.6             | GNOME 3.6                                          | 3.6      | http://gnome.org/gnome/3.6
gnome3.8             | GNOME 3.8                                          | 3.8      | http://gnome.org/gnome/3.8
macosx10.0           | MacOS X Cheetah                                    | 10.0     | http://apple.com/macosx/10.0
macosx10.1           | MacOS X Puma                                       | 10.1     | http://apple.com/macosx/10.1
macosx10.2           | MacOS X Jaguar                                     | 10.2     | http://apple.com/macosx/10.2
macosx10.3           | MacOS X Panther                                    | 10.3     | http://apple.com/macosx/10.3
macosx10.4           | MacOS X Tiger                                      | 10.4     | http://apple.com/macosx/10.4
macosx10.5           | MacOS X Leopard                                    | 10.5     | http://apple.com/macosx/10.5
macosx10.6           | MacOS X Snow Leopard                               | 10.6     | http://apple.com/macosx/10.6
macosx10.7           | MacOS X Lion                                       | 10.7     | http://apple.com/macosx/10.7
mageia1              | Mageia 1                                           | 1        | http://mageia.org/mageia/1
mageia2              | Mageia 2                                           | 2        | http://mageia.org/mageia/2
mageia3              | Mageia 3                                           | 3        | http://mageia.org/mageia/3
mageia4              | Mageia 4                                           | 4        | http://mageia.org/mageia/4
mageia5              | Mageia 5                                           | 5        | http://mageia.org/mageia/5
mageia6              | Mageia 6                                           | 6        | http://mageia.org/mageia/6
mandrake10.0         | Mandrake Linux 10.0                                | 10.0     | http://mandriva.com/mandrake/10.0
mandrake10.1         | Mandrake Linux 10.1                                | 10.1     | http://mandriva.com/mandrake/10.1
mandrake10.2         | Mandrake Linux 10.2                                | 10.2     | http://mandriva.com/mandrake/10.2
mandrake5.1          | Mandrake Linux 5.1                                 | 5.1      | http://mandriva.com/mandrake/5.1
mandrake5.2          | Mandrake Linux 5.2                                 | 5.2      | http://mandriva.com/mandrake/5.2
mandrake5.3          | Mandrake Linux 5.3                                 | 5.3      | http://mandriva.com/mandrake/5.3
mandrake6.0          | Mandrake Linux 6.0                                 | 6.0      | http://mandriva.com/mandrake/6.0
mandrake6.1          | Mandrake Linux 6.1                                 | 6.1      | http://mandriva.com/mandrake/6.1
mandrake7.0          | Mandrake Linux 7.0                                 | 7.0      | http://mandriva.com/mandrake/7.0
mandrake7.1          | Mandrake Linux 7.1                                 | 7.1      | http://mandriva.com/mandrake/7.1
mandrake7.2          | Mandrake Linux 7.2                                 | 7.2      | http://mandriva.com/mandrake/7.2
mandrake8.0          | Mandrake Linux 8.0                                 | 8.0      | http://mandriva.com/mandrake/8.0
mandrake8.1          | Mandrake Linux 8.1                                 | 8.1      | http://mandriva.com/mandrake/8.1
mandrake8.2          | Mandrake Linux 8.2                                 | 8.2      | http://mandriva.com/mandrake/8.2
mandrake9.0          | Mandrake Linux 9.0                                 | 9.0      | http://mandriva.com/mandrake/9.0
mandrake9.1          | Mandrake Linux 9.1                                 | 9.1      | http://mandriva.com/mandrake/9.1
mandrake9.2          | Mandrake Linux 9.2                                 | 9.2      | http://mandriva.com/mandrake/9.2
mandriva2006.0       | Mandriva Linux 2006.0                              | 2006.0   | http://mandriva.com/mandriva/2006.0
mandriva2007         | Mandriva Linux 2007                                | 2007     | http://mandriva.com/mandriva/2007
mandriva2007.1       | Mandriva Linux 2007 Spring                         | 2007.1   | http://mandriva.com/mandriva/2007.1
mandriva2008.0       | Mandriva Linux 2008                                | 2008.0   | http://mandriva.com/mandriva/2008.0
mandriva2008.1       | Mandriva Linux 2008 Spring                         | 2008.1   | http://mandriva.com/mandriva/2008.1
mandriva2009.0       | Mandriva Linux 2009                                | 2009.0   | http://mandriva.com/mandriva/2009.0
mandriva2009.1       | Mandriva Linux 2009 Spring                         | 2009.1   | http://mandriva.com/mandriva/2009.1
mandriva2010.0       | Mandriva Linux 2010                                | 2010.0   | http://mandriva.com/mandriva/2010.0
mandriva2010.1       | Mandriva Linux 2010 Spring                         | 2010.1   | http://mandriva.com/mandriva/2010.1
mandriva2010.2       | Mandriva Linux 2010.2                              | 2010.2   | http://mandriva.com/mandriva/2010.2
mandriva2011         | Mandriva Linux 2011                                | 2011     | http://mandriva.com/mandriva/2011
mbs1.0               | Mandriva Business Server 1.0                       | 1.0      | http://mandriva.com/mbs/1.0
mes5                 | Mandriva Enterprise Server 5.0                     | 5.0      | http://mandriva.com/mes/5.0
mes5.1               | Mandriva Enterprise Server 5.1                     | 5.1      | http://mandriva.com/mes/5.1
msdos6.22            | Microsoft MS-DOS 6.22                              | 6.22     | http://microsoft.com/msdos/6.22
netbsd0.8            | NetBSD 0.8                                         | 0.8      | http://netbsd.org/netbsd/0.8
netbsd0.9            | NetBSD 0.9                                         | 0.9      | http://netbsd.org/netbsd/0.9
netbsd1.0            | NetBSD 1.0                                         | 1.0      | http://netbsd.org/netbsd/1.0
netbsd1.1            | NetBSD 1.1                                         | 1.1      | http://netbsd.org/netbsd/1.1
netbsd1.2            | NetBSD 1.2                                         | 1.2      | http://netbsd.org/netbsd/1.2
netbsd1.3            | NetBSD 1.3                                         | 1.3      | http://netbsd.org/netbsd/1.3
netbsd1.4            | NetBSD 1.4                                         | 1.4      | http://netbsd.org/netbsd/1.4
netbsd1.5            | NetBSD 1.5                                         | 1.5      | http://netbsd.org/netbsd/1.5
netbsd1.6            | NetBSD 1.6                                         | 1.6      | http://netbsd.org/netbsd/1.6
netbsd2.0            | NetBSD 2.0                                         | 2.0      | http://netbsd.org/netbsd/2.0
netbsd3.0            | NetBSD 3.0                                         | 3.0      | http://netbsd.org/netbsd/3.0
netbsd4.0            | NetBSD 4.0                                         | 4.0      | http://netbsd.org/netbsd/4.0
netbsd5.0            | NetBSD 5.0                                         | 5.0      | http://netbsd.org/netbsd/5.0
netbsd5.1            | NetBSD 5.1                                         | 5.1      | http://netbsd.org/netbsd/5.1
netbsd6.0            | NetBSD 6.0                                         | 6.0      | http://netbsd.org/netbsd/6.0
netbsd6.1            | NetBSD 6.1                                         | 6.1      | http://netbsd.org/netbsd/6.1
netbsd7.0            | NetBSD 7.0                                         | 7.0      | http://netbsd.org/netbsd/7.0
netbsd7.1            | NetBSD 7.1                                         | 7.1      | http://netbsd.org/netbsd/7.1
netbsd7.1.1          | NetBSD 7.1.1                                       | 7.1.1    | http://netbsd.org/netbsd/7.1.1
netware4             | Novell Netware 4                                   | 4        | http://novell.com/netware/4
netware5             | Novell Netware 5                                   | 5        | http://novell.com/netware/5
netware6             | Novell Netware 6                                   | 6        | http://novell.com/netware/6
openbsd4.2           | OpenBSD 4.2                                        | 4.2      | http://openbsd.org/openbsd/4.2
openbsd4.3           | OpenBSD 4.3                                        | 4.3      | http://openbsd.org/openbsd/4.3
openbsd4.4           | OpenBSD 4.4                                        | 4.4      | http://openbsd.org/openbsd/4.4
openbsd4.5           | OpenBSD 4.5                                        | 4.5      | http://openbsd.org/openbsd/4.5
openbsd4.8           | OpenBSD 4.8                                        | 4.8      | http://openbsd.org/openbsd/4.8
openbsd4.9           | OpenBSD 4.9                                        | 4.9      | http://openbsd.org/openbsd/4.9
openbsd5.0           | OpenBSD 5.0                                        | 5.0      | http://openbsd.org/openbsd/5.0
openbsd5.1           | OpenBSD 5.1                                        | 5.1      | http://openbsd.org/openbsd/5.1
openbsd5.2           | OpenBSD 5.2                                        | 5.2      | http://openbsd.org/openbsd/5.2
openbsd5.3           | OpenBSD 5.3                                        | 5.3      | http://openbsd.org/openbsd/5.3
openbsd5.4           | OpenBSD 5.4                                        | 5.4      | http://openbsd.org/openbsd/5.4
openbsd5.5           | OpenBSD 5.5                                        | 5.5      | http://openbsd.org/openbsd/5.5
openbsd5.6           | OpenBSD 5.6                                        | 5.6      | http://openbsd.org/openbsd/5.6
openbsd5.7           | OpenBSD 5.7                                        | 5.7      | http://openbsd.org/openbsd/5.7
openbsd5.8           | OpenBSD 5.8                                        | 5.8      | http://openbsd.org/openbsd/5.8
openbsd5.9           | OpenBSD 5.9                                        | 5.9      | http://openbsd.org/openbsd/5.9
openbsd6.0           | OpenBSD 6.0                                        | 6.0      | http://openbsd.org/openbsd/6.0
openbsd6.1           | OpenBSD 6.1                                        | 6.1      | http://openbsd.org/openbsd/6.1
openbsd6.2           | OpenBSD 6.2                                        | 6.2      | http://openbsd.org/openbsd/6.2
opensolaris2009.06   | OpenSolaris 2009.06                                | 2009.06 | http://sun.com/opensolaris/2009.06
opensuse-factory     | openSUSE                                           | factory | http://opensuse.org/opensuse/factory
opensuse-unknown     | openSUSE                                           | unknown | http://opensuse.org/opensuse/unknown
opensuse10.2         | openSUSE 10.2                                      | 10.2     | http://opensuse.org/opensuse/10.2
opensuse10.3         | openSUSE 10.3                                      | 10.3     | http://opensuse.org/opensuse/10.3
opensuse11.0         | openSUSE 11.0                                      | 11.0     | http://opensuse.org/opensuse/11.0
opensuse11.1         | openSUSE 11.1                                      | 11.1     | http://opensuse.org/opensuse/11.1
opensuse11.2         | openSUSE 11.2                                      | 11.2     | http://opensuse.org/opensuse/11.2
opensuse11.3         | openSUSE 11.3                                      | 11.3     | http://opensuse.org/opensuse/11.3
opensuse11.4         | openSUSE 11.4                                      | 11.4     | http://opensuse.org/opensuse/11.4
opensuse12.1         | openSUSE 12.1                                      | 12.1     | http://opensuse.org/opensuse/12.1
opensuse12.2         | openSUSE 12.2                                      | 12.2     | http://opensuse.org/opensuse/12.2
opensuse12.3         | openSUSE 12.3                                      | 12.3     | http://opensuse.org/opensuse/12.3
opensuse13.1         | openSUSE 13.1                                      | 13.1     | http://opensuse.org/opensuse/13.1
opensuse13.2         | openSUSE 13.2                                      | 13.2     | http://opensuse.org/opensuse/13.2
opensuse42.1         | openSUSE Leap 42.1                                 | 42.1     | http://opensuse.org/opensuse/42.1
opensuse42.2         | openSUSE Leap 42.2                                 | 42.2     | http://opensuse.org/opensuse/42.2
opensuse42.3         | openSUSE Leap 42.3                                 | 42.3     | http://opensuse.org/opensuse/42.3
opensusetumbleweed   | openSUSE Tumbleweed                                | tumbleweed | http://opensuse.org/opensuse/tumbleweed
rhel-atomic-7.0      | Red Hat Enterprise Linux Atomic Host 7.0           | 7.0      | http://redhat.com/rhel-atomic/7.0
rhel-atomic-7.1      | Red Hat Enterprise Linux Atomic Host 7.1           | 7.1      | http://redhat.com/rhel-atomic/7.1
rhel-atomic-7.2      | Red Hat Enterprise Linux Atomic Host 7.2           | 7.2      | http://redhat.com/rhel-atomic/7.2
rhel2.1              | Red Hat Enterprise Linux 2.1                       | 2.1      | http://redhat.com/rhel/2.1
rhel2.1.1            | Red Hat Enterprise Linux 2.1 Update 1  /etc/bind/masters/elinvent.com            | 2.1.1    | http://redhat.com/rhel/2.1.1
rhel2.1.2            | Red Hat Enterprise Linux 2.1 Update 2              | 2.1.2    | http://redhat.com/rhel/2.1.2
rhel2.1.3            | Red Hat Enterprise Linux 2.1 Update 3              | 2.1.3    | http://redhat.com/rhel/2.1.3
rhel2.1.4            | Red Hat Enterprise Linux 2.1 Update 4              | 2.1.4    | http://redhat.com/rhel/2.1.4
rhel2.1.5            | Red Hat Enterprise Linux 2.1 Update 5              | 2.1.5    | http://redhat.com/rhel/2.1.5
rhel2.1.6            | Red Hat Enterprise Linux 2.1 Update 6              | 2.1.6    | http://redhat.com/rhel/2.1.6
rhel2.1.7            | Red Hat Enterprise Linux 2.1 Update 7              | 2.1.7    | http://redhat.com/rhel/2.1.7
rhel3                | Red Hat Enterprise Linux 3                         | 3        | http://redhat.com/rhel/3
rhel3.1              | Red Hat Enterprise Linux 3 Update 1                | 3.1      | http://redhat.com/rhel/3.1
rhel3.2              | Red Hat Enterprise Linux 3 Update 2                | 3.2      | http://redhat.com/rhel/3.2
rhel3.3              | Red Hat Enterprise Linux 3 Update 3                | 3.3      | http://redhat.com/rhel/3.3
rhel3.4              | Red Hat Enterprise Linux 3 Update 4                | 3.4      | http://redhat.com/rhel/3.4
rhel3.5              | Red Hat Enterprise Linux 3 Update 5                | 3.5      | http://redhat.com/rhel/3.5
rhel3.6              | Red Hat Enterprise Linux 3 Update 6                | 3.6      | http://redhat.com/rhel/3.6
rhel3.7              | Red Hat Enterprise Linux 3 Update 7                | 3.7      | http://redhat.com/rhel/3.7
rhel3.8              | Red Hat Enterprise Linux 3 Update 8                | 3.8      | http://redhat.com/rhel/3.8
rhel3.9              | Red Hat Enterprise Linux 3 Update 9                | 3.9      | http://redhat.com/rhel/3.9
rhel4.0              | Red Hat Enterprise Linux 4.0                       | 4.0      | http://redhat.com/rhel/4.0
rhel4.1              | Red Hat Enterprise Linux 4.1                       | 4.1      | http://redhat.com/rhel/4.1
rhel4.2              | Red Hat Enterprise Linux 4.2                       | 4.2      | http://redhat.com/rhel/4.2
rhel4.3              | Red Hat Enterprise Linux 4.3                       | 4.3      | http://redhat.com/rhel/4.3
rhel4.4              | Red Hat Enterprise Linux 4.4                       | 4.4      | http://redhat.com/rhel/4.4
rhel4.5              | Red Hat Enterprise Linux 4.5                       | 4.5      | http://redhat.com/rhel/4.5
rhel4.6              | Red Hat Enterprise Linux 4.6                       | 4.6      | http://redhat.com/rhel/4.6
rhel4.7              | Red Hat Enterprise Linux 4.7                       | 4.7      | http://redhat.com/rhel/4.7
rhel4.8              | Red Hat Enterprise Linux 4.8                       | 4.8      | http://redhat.com/rhel/4.8
rhel4.9              | Red Hat Enterprise Linux 4.9                       | 4.9      | http://redhat.com/rhel/4.9
rhel5.0              | Red Hat Enterprise Linux 5.0                       | 5.0      | http://redhat.com/rhel/5.0
rhel5.1              | Red Hat Enterprise Linux 5.1                       | 5.1      | http://redhat.com/rhel/5.1
rhel5.10             | Red Hat Enterprise Linux 5.10                      | 5.10     | http://redhat.com/rhel/5.10
rhel5.11             | Red Hat Enterprise Linux 5.11                      | 5.11     | http://redhat.com/rhel/5.11
rhel5.2              | Red Hat Enterprise Linux 5.2                       | 5.2      | http://redhat.com/rhel/5.2
rhel5.3              | Red Hat Enterprise Linux 5.3                       | 5.3      | http://redhat.com/rhel/5.3
rhel5.4              | Red Hat Enterprise Linux 5.4                       | 5.4      | http://redhat.com/rhel/5.4
rhel5.5              | Red Hat Enterprise Linux 5.5                       | 5.5      | http://redhat.com/rhel/5.5
rhel5.6              | Red Hat Enterprise Linux 5.6                       | 5.6      | http://redhat.com/rhel/5.6
rhel5.7              | Red Hat Enterprise Linux 5.7                       | 5.7      | http://redhat.com/rhel/5.7
rhel5.8              | Red Hat Enterprise Linux 5.8                       | 5.8      | http://redhat.com/rhel/5.8
rhel5.9              | Red Hat Enterprise Linux 5.9                       | 5.9      | http://redhat.com/rhel/5.9
rhel6.0              | Red Hat Enterprise Linux 6.0                       | 6.0      | http://redhat.com/rhel/6.0
rhel6.1              | Red Hat Enterprise Linux 6.1                       | 6.1      | http://redhat.com/rhel/6.1
rhel6.2              | Red Hat Enterprise Linux 6.2                       | 6.2      | http://redhat.com/rhel/6.2
rhel6.3              | Red Hat Enterprise Linux 6.3                       | 6.3      | http://redhat.com/rhel/6.3
rhel6.4              | Red Hat Enterprise Linux 6.4                       | 6.4      | http://redhat.com/rhel/6.4
rhel6.5              | Red Hat Enterprise Linux 6.5                       | 6.5      | http://redhat.com/rhel/6.5
rhel6.6              | Red Hat Enterprise Linux 6.6                       | 6.6      | http://redhat.com/rhel/6.6
rhel6.7              | Red Hat Enterprise Linux 6.7                       | 6.7      | http://redhat.com/rhel/6.7
rhel6.8              | Red Hat Enterprise Linux 6.8                       | 6.8      | http://redhat.com/rhel/6.8
rhel6.9              | Red Hat Enterprise Linux 6.9                       | 6.9      | http://redhat.com/rhel/6.9
rhel7.0              | Red Hat Enterprise Linux 7.0                       | 7.0      | http://redhat.com/rhel/7.0
rhel7.1              | Red Hat Enterprise Linux 7.1                       | 7.1      | http://redhat.com/rhel/7.1
rhel7.2              | Red Hat Enterprise Linux 7.2                       | 7.2      | http://redhat.com/rhel/7.2
rhel7.3              | Red Hat Enterprise Linux 7.3                       | 7.3      | http://redhat.com/rhel/7.3
rhel7.4              | Red Hat Enterprise Linux 7.4                       | 7.4      | http://redhat.com/rhel/7.4
rhl1.0               | Red Hat Linux 1.0                                  | 1.0      | http://redhat.com/rhl/1.0
rhl1.1               | Red Hat Linux 1.1                                  | 1.1      | http://redhat.com/rhl/1.1
rhl2.0               | Red Hat Linux 2.0                                  | 2.0      | http://redhat.com/rhl/2.0
rhl2.1               | Red Hat Linux 2.1                                  | 2.1      | http://redhat.com/rhl/2.1
rhl3.0.3             | Red Hat Linux 3.0.3                                | 3.0.3    | http://redhat.com/rhl/3.0.3
rhl4.0               | Red Hat Linux 4.0                                  | 4.0      | http://redhat.com/rhl/4.0
rhl4.1               | Red Hat Linux 4.1                                  | 4.1      | http://redhat.com/rhl/4.1
rhl4.2               | Red Hat Linux 4.2                                  | 4.2      | http://redhat.com/rhl/4.2
rhl5.0               | Red Hat Linux 5.0                                  | 5.0      | http://redhat.com/rhl/5.0
rhl5.1               | Red Hat Linux 5.1                                  | 5.1      | http://redhat.com/rhl/5.1
rhl5.2               | Red Hat Linux 5.2                                  | 5.2      | http://redhat.com/rhl/5.2
rhl6.0               | Red Hat Linux 6.0                                  | 6.0      | http://redhat.com/rhl/6.0
rhl6.1               | Red Hat Linux 6.1                                  | 6.1      | http://redhat.com/rhl/6.1
rhl6.2               | Red Hat Linux 6.2                                  | 6.2      | http://redhat.com/rhl/6.2
rhl7                 | Red Hat Linux 7                                    | 7        | http://redhat.com/rhl/7
rhl7.1               | Red Hat Linux 7.1                                  | 7.1      | http://redhat.com/rhl/7.1
rhl7.2               | Red Hat Linux 7.2                                  | 7.2      | http://redhat.com/rhl/7.2
rhl7.3               | Red Hat Linux 7.3                                  | 7.3      | http://redhat.com/rhl/7.3
rhl8.0               | Red Hat Linux 8.0                                  | 8.0      | http://redhat.com/rhl/8.0
rhl9                 | Red Hat Linux 9                                    | 9        | http://redhat.com/rhl/9
sled10               | SUSE Linux Enterprise Desktop 10                   | 10       | http://suse.com/sled/10
sled10sp1            | SUSE Linux Enterprise Desktop 10 SP1               | 10.1     | http://suse.com/sled/10.1
sled10sp2            | SUSE Linux Enterprise Desktop 10 SP2               | 10.2     | http://suse.com/sled/10.2
sled10sp3            | SUSE Linux Enterprise Desktop 10 SP3               | 10.3     | http://suse.com/sled/10.3
sled10sp4            | SUSE Linux Enterprise Desktop 10 SP4               | 10.4     | http://suse.com/sled/10.4
sled11               | SUSE Linux Enterprise Desktop 11                   | 11       | http://suse.com/sled/11
sled11sp1            | SUSE Linux Enterprise Desktop 11 SP1               | 11.1     | http://suse.com/sled/11.1
sled11sp2            | SUSE Linux Enterprise Desktop 11 SP2               | 11.2     | http://suse.com/sled/11.2
sled11sp3            | SUSE Linux Enterprise Desktop 11 SP3               | 11.3     | http://suse.com/sled/11.3
sled11sp4            | SUSE Linux Enterprise Desktop 11 SP4               | 11.4     | http://suse.com/sled/11.4
sled12               | SUSE Linux Enterprise Desktop 12                   | 12       | http://suse.com/sled/12
sled12sp1            | SUSE Linux Enterprise Desktop 12 SP1               | 12.1     | http://suse.com/sled/12.1
sled12sp2            | SUSE Linux Enterprise Desktop 12 SP2               | 12.2     | http://suse.com/sled/12.2
sled9                | SUSE Linux Enterprise Desktop 9                    | 9        | http://suse.com/sled/9
sles10               | SUSE Linux Enterprise Server 10            /etc/bind/masters/elinvent.com        | 10       | http://suse.com/sles/10
sles10sp1            | SUSE Linux Enterprise Server 10 SP1                | 10.1     | http://suse.com/sles/10.1
sles10sp2            | SUSE Linux Enterprise Server 10 SP2                | 10.2     | http://suse.com/sles/10.2
sles10sp3            | SUSE Linux Enterprise Server 10 SP3                | 10.3     | http://suse.com/sles/10.3
sles10sp4            | SUSE Linux Enterprise Server 10 SP4                | 10.4     | http://suse.com/sles/10.4
sles11               | SUSE Linux Enterprise Server 11                    | 11       | http://suse.com/sles/11
sles11sp1            | SUSE Linux Enterprise Server 11 SP1                | 11.1     | http://suse.com/sles/11.1
sles11sp2            | SUSE Linux Enterprise Server 11 SP2                | 11.2     | http://suse.com/sles/11.2
sles11sp3            | SUSE Linux Enterprise Server 11 SP3                | 11.3     | http://suse.com/sles/11.3
sles11sp4            | SUSE Linux Enterprise Server 11 SP4                | 11.4     | http://suse.com/sles/11.4
sles12               | SUSE Linux Enterprise Server 12                    | 12       | http://suse.com/sles/12
sles12sp1            | SUSE Linux Enterprise Server 12 SP1                | 12.1     | http://suse.com/sles/12.1
sles12sp2            | SUSE Linux Enterprise Server 12 SP2                | 12.2     | http://suse.com/sles/12.2
sles9                | SUSE Linux Enterprise Server 9                     | 9        | http://suse.com/sles/9
solaris10            | Solaris 10                                         | 10       | http://sun.com/solaris/10
solaris11            | Oracle Solaris 11                                  | 11       | http://oracle.com/solaris/11
solaris9             | Solaris 9                                          | 9        | http://sun.com/solaris/9
ubuntu10.04          | Ubuntu 10.04 LTS                                   | 10.04    | http://ubuntu.com/ubuntu/10.04
ubuntu10.10          | Ubuntu 10.10                                       | 10.10    | http://ubuntu.com/ubuntu/10.10
ubuntu11.04          | Ubuntu 11.04                                       | 11.04    | http://ubuntu.com/ubuntu/11.04
ubuntu11.10          | Ubuntu 11.10                                       | 11.10    | http://ubuntu.com/ubuntu/11.10
ubuntu12.04          | Ubuntu 12.04 LTS                                   | 12.04    | http://ubuntu.com/ubuntu/12.04
ubuntu12.10          | Ubuntu 12.10                                       | 12.10    | http://ubuntu.com/ubuntu/12.10
ubuntu13.04          | Ubuntu 13.04                                       | 13.04    | http://ubuntu.com/ubuntu/13.04
ubuntu13.10          | Ubuntu 13.10                                       | 13.10    | http://ubuntu.com/ubuntu/13.10
ubuntu14.04          | Ubuntu 14.04 LTS                                   | 14.04    | http://ubuntu.com/ubuntu/14.04
ubuntu14.10          | Ubuntu 14.10                                       | 14.10    | http://ubuntu.com/ubuntu/14.10
ubuntu15.04          | Ubuntu 15.04                                       | 15.04    | http://ubuntu.com/ubuntu/15.04
ubuntu15.10          | Ubuntu 15.10                                       | 15.10    | http://ubuntu.com/ubuntu/15.10
ubuntu16.04          | Ubuntu 16.04                                       | 16.04    | http://ubuntu.com/ubuntu/16.04
ubuntu16.10          | Ubuntu 16.10                                       | 16.10    | http://ubuntu.com/ubuntu/16.10
ubuntu17.04          | Ubuntu 17.04                                       | 17.04    | http://ubuntu.com/ubuntu/17.04
ubuntu17.10          | Ubuntu 17.10                                       | 17.10    | http://ubuntu.com/ubuntu/17.10
ubuntu4.10           | Ubuntu 4.10                                        | 4.10     | http://ubuntu.com/ubuntu/4.10
ubuntu5.04           | Ubuntu 5.04                                        | 5.04     | http://ubuntu.com/ubuntu/5.04
ubuntu5.10           | Ubuntu 5.10                                        | 5.10     | http://ubuntu.com/ubuntu/5.10
ubuntu6.06           | Ubuntu 6.06 LTS                                    | 6.06     | http://ubuntu.com/ubuntu/6.06
ubuntu6.10           | Ubuntu 6.10                                        | 6.10     | http://ubuntu.com/ubuntu/6.10
ubuntu7.04           | Ubuntu 7.04                                        | 7.04     | http://ubuntu.com/ubuntu/7.04
ubuntu7.10           | Ubuntu 7.10                                        | 7.10     | http://ubuntu.com/ubuntu/7.10
ubuntu8.04           | Ubuntu 8.04 LTS                                    | 8.04     | http://ubuntu.com/ubuntu/8.04
ubuntu8.10           | Ubuntu 8.10                                        | 8.10     | http://ubuntu.com/ubuntu/8.10
ubuntu9.04           | Ubuntu 9.04                                        | 9.04     | http://ubuntu.com/ubuntu/9.04
ubuntu9.10           | Ubuntu 9.10                                        | 9.10     | http://ubuntu.com/ubuntu/9.10
win1.0               | Microsoft Windows 1.0                              | 1.0      | http://microsoft.com/win/1.0
win10                | Microsoft Windows 10                               | 10.0     | http://microsoft.com/win/10
win2.0               | Microsoft Windows 2.0                              | 2.0      | http://microsoft.com/win/2.0
win2.1               | Microsoft Windows 2.1                              | 2.1      | http://microsoft.com/win/2.1
win2k                | Microsoft Windows 2000                             | 5.0      | http://microsoft.com/win/2k
win2k12              | Microsoft Windows Server 2012                      | 6.3      | http://microsoft.com/win/2k12
win2k12r2            | Microsoft Windows Server 2012 R2                   | 6.3      | http://microsoft.com/win/2k12r2
win2k3               | Microsoft Windows Server 2003                      | 5.2      | http://microsoft.com/win/2k3
win2k3r2             | Microsoft Windows Server 2003 R2                   | 5.2      | http://microsoft.com/win/2k3r2
win2k8               | Microsoft Windows Server 2008                      | 6.0      | http://microsoft.com/win/2k8
win2k8r2             | Microsoft Windows Server 2008 R2                   | 6.1      | http://microsoft.com/win/2k8r2
win3.1               | Microsoft Windows 3.1                              | 3.1      | http://microsoft.com/win/3.1
win7                 | Microsoft Windows 7                                | 6.1      | http://microsoft.com/win/7
win8                 | Microsoft Windows 8                                | 6.2      | http://microsoft.com/win/8
win8.1               | Microsoft Windows 8.1                              | 6.3      | http://microsoft.com/win/8.1
win95                | Microsoft Windows 95                               | 4.0      | http://microsoft.com/win/95
win98                | Microsoft Windows 98                               | 4.1      | http://microsoft.com/win/98
winme                | Microsoft Windows Millennium Edition               | 4.9      | http://microsoft.com/win/me
winnt3.1             | Microsoft Windows NT Server 3.1                    | 3.1      | http://microsoft.com/winnt/3.1
winnt3.5             | Microsoft Windows NT Server 3.5                    | 3.5      | http://microsoft.com/winnt/3.5
winnt3.51            | Microsoft Windows NT Server 3.51                   | 3.51     | http://microsoft.com/winnt/3.51
winnt4.0             | Microsoft Windows NT Server 4.0                    | 4.0      | http://microsoft.com/winnt/4.0
winvista             | Microsoft Windows Vista                            | 6.0      | http://microsoft.com/win/vista
winxp                | Microsoft Windows XP                               | 5.1      | http://microsoft.com/win/xp

9. Start / Stop listed KVM Virtual Machine

root@jeremiah:~# virsh list –all
Id    Name                           State
—————————————————-
3     fedora-28                      running
–     debian9                        shut off

To start debian9 linux virtual machine that is currently off

root@jeremiah:~# virsh start fedora-28
Domain fedora-28 started

root@jeremiah:/home/hipo# virsh start debian9
error: Failed to start domain debian9
error: Requested operation is not valid: network 'default' is not active

root@jeremiah:/home/hipo# virsh net-list –all
Name                 State      Autostart     Persistent
———————————————————-
br0                  active     yes           yes
default              inactive   no            yes

root@jeremiah:/home/hipo# virsh net-start default
Network default started

root@jeremiah:/home/hipo# virsh start debian9
Domain debian9 started

10. Attach to running VM with virsh or virt-manager

root@jeremiah:~# virsh list
Id    Name                           State
—————————————————-
1     fedora-28                      running
3     debian9                        running

root@jeremiah:~# virsh connect debian9

Note that to make the login prompt appear you have to press enter once after the ^] connection string appears

kvm-connect-to-virtual-machine-with-virsh-command-screenshot-howto

An alternative way is to use virt-manager GUI KVM desktop management interface and click over the Virtual Machine Guest name, in same fashion like in VirtualBox.

virtual-manager-virt-manager-screenshot-with-Virtual-Machines-inside-on-Debian-Linux

virt-manager-gui-interface-connect-to-fedora-28-virtual-machine

If you have KVM running on your Linux desktop PC / notebook you can also connect via VNC with virsh command.

root@jericho:~# virsh vncdisplay centos7

Another handy thing is to expose the Virtualized Guest OS with VNC in order to be able to connect and manage installation or further Linux configuration via VNC using an SSH Tunnel with port forwarding:

$ ssh hipo@www.pc-freak.net -L 5901:127.0.0.1:5901

11. Start / Shutdown / Suspend / Reboot (safe reboot) a VM guest machine domain

root@jericho:~# virsh shutdown debian9
root@jericho:~# virsh start fedora-28
root@jericho:~# virsh suspend debian9
root@jericho:~# virsh reboot fedora-28

12. Remove / Delete KVM Virtual Machines domain

root@jeremiah:~# virsh undefine fedora-28
root@jeremiah:~# virsh destroy fedora-28

Closing words

Using KVM to experiment with different OS distributions is really fun just like you can easily run a number of the major most popular Linux Distributions and a set of different versions. It takes few minutes to have a fully functional Linux to play with and it saves a lot of hassles when dealing with GNU / Linux and FreeBSD, doing so in Virtualbox for me prooved to be much more complicated (not to mention that often Virtualbox had an ugly bugs so even Importing an Appliance as a Guest VM with an official distro OS-es failed with weird errors.
One other very practical use of Kerkel-based Virtualization is if you want to run your servers using own Micro-Services architecture (e.g. run multiple Linux OS-es each running a separate Apache / Nginx / MySQL / PostGreSQL / Backup / Storage) etc. all of it running on a single dedicated server or a self-hosted bare-metal
There are plenty of Web Interfaces for Management KVM (proprietary and free software) that could even futher simplify the use and deploy / destory of KVM VMs.
All that makes possible running your own Linux or Web hosting provider a relatively easy task and seriously could cut business expenses and operational (maintenance) costs.

If you plan to run youw own hosting company, I can help you establish your infrastructure and advise you on the right technologies to use.

Tags: access, administrator, after, ALL, ALLOW, Alt, alternative, amp, and, another, Below, cmd, com, Debian Squeeze, freebsd, How to, howto, Installing, kvm, kvm install os, org, os-query, packages, root root, timezone, virsh, virt-builder, virt-install, virt-manager, Virtual Machine Hypervisor
Posted in Linux, Various, Virtual Machines | 1 Comment »

Qmail redirect mail to another one and keep local Mailbox copy with .qmail file – Easy Set up email forwarding Qmail

Saturday, August 11th, 2018

QMail (Considered to be the most secure Mail server out there whose modified version is running on Google – Gmail.com and Mail Yahoo! and Yandex EMail (SMTP) servers, nowadays has been highly neglected and considered obsolete thus most people prefer to use postfix SMTP or EXIM but still if you happen to be running a number of qmail old rack Mail servers (running a bunch of Email addresses and Virtual Domains straight on the filesystem – very handy by the way for administration much better than when you have a Qmail Mail server configured to store its Mailboxes within MySQL / PostgreSQL or other Database server – because simple vpopmail configured to play nice with Qmail and store all user emails directly on Filesystem (though considered more insecure the email correspondence can be easily red, if the server is hacked it is much better managable for a small and mid-sized mailserver) or have inherited them from another sys admin and you wonder how to redirect a single Mailbox:

(under domain lets say domain's email my-server1.com should forward to to SMTP domain my-server-whatever2.com (e.g. your-email-username@server-whatever1.com is supposed to forward to your-email-username2@server-whatever2.com).
To achieve it create new file called .qmail

Under the Qmail or VirtualDomain location for example:

/var/qmail/mailnames/myserver1.com/username/.qmail

e.g

root@qmail-server:~# vim /var/qmail/mailnames/myserver1.com/your-email-username/.qmail
&your-email-username@server-whatever1.com
your-email-username@example1.com
/home/vpopmail/domains/server-whatever2.com/your-email-username/Maildir/

!!! NOTE N.B. !!! the last slash / after Maildir (…Maildir/) is important to be there otherwise mail will not get delivered
That's all now send a test email, just to make sure redirection works properly, assuming the .qmail file is created by root, by default the file permissions will be with privileges root:root.

Note

That shouldn't be a problem at all. That's all now enjoy emails being dropped out to the second mail 🙂

Tags: better, com, email, file permissions, modified version, redirection, root root, running, var, virtual domains
Posted in Qmail, Remote System Administration, Various | No Comments »

Installing the phpbb forum on Debian (Squeeze/Sid) Linux

Saturday, September 11th, 2010

I've just installed the phpbb forum on a Debian Linux because we needed a goodquick to install communication media in order to improve our internal communication in a student project in Strategic HR we're developing right now in Arnhem Business School.

Here are the exact steps I followed to have a properly it properly instlled:

1. Install the phpbb3 debian package
This was pretty straight forward:

debian:~# apt-get install phpbb3

At this point of installation I've faced a dpkg-reconfigure phpbb deb package configuration issue:
I was prompted to pass in the credentials for my MySQL password right after I've selected the MySQL as my preferred database back engine.
I've feeded my MySQL root password as well as my preferred forum database name, however the database installation failed because, somehow the configuration procedure tried to connect to my MySQL database with the htcheck user.
I guess this has to be a bug in the package itself or something from my previous installation misconfigured the way the debian database backend configuration was operating.
My assumption is that my previously installed htcheck package or something beforehand I've done right after the htcheck and htcheck-php packages installation.

after the package configuration failed still the package had a status of properly installed when I reviewed it with dpkg
I've thought about trying to manually reconfigure it using the dpkg-reconfigure debian command and I gave it a try like that:

debian:~# dpkg-reconfigure phpbb3

This time along with the other fields I've to fill in the ncurses interface I was prompted for a username before the password prompted appeared.
Logically I tried to fill in the root as it's my global privileges MySQL allowed user.
However that didn't helped at all and again the configuration tried to send the credentials with user htcheck to my MySQL database server.
To deal with the situation I had to approach it in the good old manual way.

2. Manually prepare / create the required phpbb forum database

To completet that connected to the MySQL server with the mysql client and created the proper database like so:

debian:~# mysql -u root -p mysql> CREATE database phpbb3forum;

3. Use phpmyadmin or the mysql client command line to create a new user for the phpbb forum

Here since adding up the user using the phpmyadmin was a way easier to do I decided to go that route, anyways using the mysql cli is also an option.

From phpmyadmin It's pretty easy to add a new user and grant privileges to a certain database, to do so navigate to the following database:

Privileges -> -> Add a new user ->

Now type your User name: , Host , Password , Re-type password , also for a Host: you have to choose Local from the drop down menu.

Leave the Database for user field empty as we have already previously created our desired database in step 2 of this article

Now press the "Go" button and the user will get created.

Further after choose the Privileges menu right on the bottom of the page once again, select through the checkbox the username you have just created let's say the previously created user is phpbb3

Go to Action (There is a picture with a man and a pencil on the right side of this button

Scroll down to the page part saying Database-specific privileges and in the field Add privileges on the following database: fill in your previosly created database name in our case it's phpbb3forum

and then press the "Go" button once again.
A page will appear where you will have to select the exact privileges you would like to grant on the specific selected database.
For some simplicity just check all the checkbox to grant as many privilegs to your database as you could.
Then again you will have to press the "Go" button and there you go you should have already configured an username and database ready to go with your new phpbb forum.

4. Create a virtualhost if you would like to have the forum as a subdomain or into a separate domain

If you decide to have the forum on a separate sub-domain or domain as I did you will have to add some kind of Virtualhost into either your Apache configuration /etc/apache2/apache2.conf or into where officially the virutualhosts are laid in Debian Linux in /etc/apache2/sites-available
I've personally created a new file like for instance /etc/apache2/sites-available/mysubdomain.mydomain.com

Here is an example content of the new Virtualhost:

<VirtualHost *> ServerAdmin admin-email@domain.com ServerName mysubdomain.domain.com

# Indexes + Directory Root.
DirectoryIndex index.php index.php5 index.htm index.html index.pl index.cgi index.phtml index.jsp index.py index.asp

DocumentRoot /usr/share/phpbb3/www/

# Logfiles
ErrorLog /var/log/apache2/yourdomain/error.log
CustomLog /var/log/apache2/yourdomain/access.log combined
# CustomLog /dev/null combined
<Directory /usr/share/phpbb3/www/>
Options FollowSymLinks MultiViews -Includes ExecCGI
AllowOverride All
Order allow,deny
allow from all </Directory>
</VirtualHost>

In above Virtualhost just change the values for ServerAdmin , ServerName , DocumentRoot , ErrorLog , CustomLog and Directory declaration to adjust it to your situation.

5. Restart the Apache webserver for the new Virtualhost to take affect

debian:~# /etc/init.d/apache2 restart

Now accessing your http://mysubdomain.domain.com should display the installed phpbb3 forum
The default username and password for your forum you can use straight are:

username: admin
password: admin

So far so good you by now have the PHPBB3 forum properly installed and running, however if you try to Register a new user in the forum you will notice that it's impossible because of a terrible ugly message reading:

Sorry but this board is currently unavailable.

I've spend few minutes online to scrape through the forums before I can understand what I have to stop that annoying message from appearing and allow new users to register in the phpbb forum

The solution came natural and was a setting that had to be changed with the forum admin account, thus login as admin and look at the bottom of the page, below the text reading Powered by phpBB Â© 2000, 2002, 2005, 2007 phpBB Group you will notice a link with Administration Control Panel
just press there a whole bunch of menus will appear on the screen allowing you to do numerous things, however what you will have to do is go to
Board Settings -> Disable Board

and change the radio button there to say No

That's all now your forum will be ready to go and your users can freely register and if the server where the forum is installed has an already running mail server, they will receive an emails with a registration data concerning their new registrations in your new phpbb forum.
Cheers and Enjoy your new shiny phpbb Forum 🙂

Tags: apache, apache2, assumption, business school, Button, client, com, communication media, configuration issue, configuration procedure, credentials, CustomLog, database backend, database installation, database name, deb package, debian linux, debian package, Debian Squeeze Sid Linux, dpkg, exact steps, forum database, host, Install, installation, Installing, internal communication, mysql database server, mysubdomain, ncurses interface, package, page, password, php, phpbb forum, phpmyadmin, Privileges, Restart, right, root, ServerName, something, squeeze, strategic hr, student, username, Virtualhost
Posted in Linux, System Administration | 12 Comments »

xorg on Toshiba Satellite L40 14B with Intel GM965 video hangs up after boot and the worst fix ever / How to reinstall Ubuntu by keeping the old personal data and programs

Wednesday, April 27th, 2011

I have updated Ubuntu version 9.04 (Jaunty) to 9.10 and followed the my previous post update ubuntu from 9.04 to Latest Ubuntu

I expected that a step by step upgrade from a release to release will work like a charm and though it does on many notebooks it doesn't on Toshiba Satellite L40

The update itself went fine, whether I used the update-manager -d and followed the above pointed tutorial, however after a system restart the PC failed to boot the X server properly, a completely blank screen with blinking cursor appeared and that was all.

I restarted the system into the 2.6.35-28-generic kernel rescue-mode recovery kernel in order to be able to enter into physical console.

Logically the first thing I did is to check /var/log/messages and /var/log/Xorg.0.log but I couldn't find nothing unusual or wrong there.

I suspected something might be wrong with /etc/X11/xorg.conf so I deleted it:

ubuntu:~# rm -f /etc/X11/xorg.conf

and attempted to re-create the xorg.conf X configuration with command:

ubuntu:~# dpkg-reconfigure xserver-xorg

This command was reported to be the usual way to reconfigure the X server settings from console, but in my case (for unknown reasons) it did nothing.

Next the command which was able to re-generate the xorg.conf file was:

ubuntu:~# X -configure

The command generates a xorg.conf sample file in /root/xorg.conf.* so I used the conf to put it in /etc/X11/xorg.conf X's default location and restarted in hope that this would fix the non-booting issue.

Very sadly again the black screen of death appeared on the notebook toshiba screen.
I further thought of completely wipe out the xorg.conf in hope that at least it might boot without the conf file but this worked out neither.

I attempted to run the Xserver with a xorg.conf configured to work with vesa as it's well known vesa X server driver is supposed to work on 99% of the video cards, as almost all of them nowdays are compatible with the vesa standard, but guess what in my case vesa worked not!

The only version of X I can boot in was the failsafe X screen mode which is available through the grub's boot menu recovery mode.

Further on I decided to try few xorg.conf which I found online and were reported to work fine with Intel GM965 internal video , and yes this was also unsucessful.

Some of my other futile attempts were: to re-install the xorg server with apt-get, reinstall the xserver-xorg-video-intel driver e.g.:

ubuntu:~# apt-get install --reinstall xserver-xorg xserver-xorg-video-intel

As nothing worked out I was completely pissed off and decided to take an alternative approach which will take a lot of time but at least will probably be succesful, I decided to completely re-install the Ubuntu from a CD after backing up the /home directory and making a list of available packages on the system, so I can further easily run a tiny bash one-liner script to install all the packages which were previously existing on the laptop before the re-install:

Here is how I did it:

First I archived the /home directory:

ubuntu:/# tar -czvf home.tar.gz home/ ....

For 12GB of data with some few thousands of files archiving it took about 40 minutes.

The tar spit archive became like 9GB and I hence used sftp to upload it to a remote FTP server as I was missing a flash drive or an external HDD where I can place the just archived data.

Uploading with sftp can be achieved with a command similar to:

sftp user@yourhost.com Password: Connected to yourhost.com. sftp> put home.tar.gz

As a next step to backup in a file the list of all current installed packages, before I can further proceed to boot-up with the Ubuntu Maverich 10.10 CD and prooceed with the fresh install I used command:

for i in $(dpkg -l| awk '{ print $2 }'); do echo $i; done >> my_current_ubuntu_packages.txt

Once again I used sftp as in above example to upload my_current_update_packages.txt file to my FTP host.

After backing up all the stuff necessery, I restarted the system and booted from the CD-rom with Ubuntu.
The Ubuntu installation as usual is more than a piece of cake and even if you don't have a brain you can succeed with it, so I wouldn't comment on it 😉

Right after the installation I used the sftp client once again to fetch the home.tar.gz and my_current_ubuntu_packages.txt

I placed the home.tar.gz in /home/ and untarred it inside the fresh /home dir:

ubuntu:/home# tar -zxvf home.tar.gz

Eventually the old home directory was located in /home/home so thereon I used Midnight Commander ( the good old mc text file explorer and manager ) to restore the important user files to their respective places.

As a last step I used the my_current_ubuntu_packages.txt in combination with a tiny shell script to install all the listed packages inside the file with command:

ubuntu:~# for i in $(cat my_current_ubuntu_packagespackages.txt); do apt-get install --yes $i; sleep 1; done

You will have to stay in front of the computer and manually answer a ncurses interface questions concerning some packages configuration and to be honest this is really annoying and time consuming.

Summing up the overall time I spend with this stupid Toshiba Satellite L40 with the shitty Intel GM965 was 4 days, where each day I tried numerous ways to fix up the X and did my best to get through the blank screen xserver non-bootable issue, without a complete re-install of the old Ubuntu system.
This is a lesson for me that if I stumble such a shitty issues I will straight proceed to the re-install option and not loose my time with non-sense fixes which would never work.

Hope the article might be helpful to somebody else who experience some problems with Linux similar to mine.

After all at least the Ubuntu Maverick 10.10 is really good looking in general from a design perspective.
What really striked me was the placement of the close, minimize and maximize window buttons , it seems in newer Ubuntus the ubuntu guys decided to place the buttons on the left, here is a screenshot:

I believe the solution I explain, though very radical and slow is a solution that would always work and hence worthy 😉
Let me hear from you if the article was helpful.

Tags: blank screen, blinking cursor, com, configured, configureThe, cursor, default location, file, generic kernel, installation, intel, location, log, log messages, Logically, notebook toshiba, notebooks, personal data, rescue mode, root, Satellite, screen, script, server settings, sftp, something, system, toshiba, toshiba satellite, toshiba satellite l40, tutorial, Ubuntu, upgrade, vesa, video, video cards, x server, Xorg, yourhost
Posted in Linux, Linux and FreeBSD Desktop, Linux Audio & Video, Linux on Laptops, System Administration | No Comments »

Block Web server over loading Bad Crawler Bots and Search Engine Spiders with .htaccess rules

Monday, September 18th, 2017

In last post, I've talked about the problem of Search Index Crawler Robots aggressively crawling websites and how to stop them (the article is here) explaning how to raise delays between Bot URL requests to website and how to completely probhit some bots from crawling with robots.txt.

As explained in article the consequence of too many badly written or agressive behaviour Spider is the "server stoning" and therefore degraded Web Server performance as a cause or even a short time Denial of Service Attack, depending on how well was the initial Server Scaling done.

The bots we want to filter are not to be confused with the legitimate bots, that drives real traffic to your website, just for information

The 10 Most Popular WebCrawlers Bots as of time of writting are:

1. GoogleBot (The Google Crawler bots, funnily bots become less active on Saturday and Sundays :))

2. BingBot (Bing.com Crawler bots)

3. SlurpBot (also famous as Yahoo! Slurp)

4. DuckDuckBot (The dutch search engine duckduckgo.com crawler bots)

5. Baiduspider (The Chineese most famous search engine used as a substitute of Google in China)

6. YandexBot (Russian Yandex Search engine crawler bots used in Russia as a substitute for Google )

7. Sogou Spider (leading Chineese Search Engine launched in 2004)

8. Exabot (A French Search Engine, launched in 2000, crawler for ExaLead Search Engine)

9. FaceBot (Facebook External hit, this crawler is crawling a certain webpage only once the user shares or paste link with video, music, blog whatever in chat to another user)

10. Alexa Crawler (la_archiver is a web crawler for Amazon's Alexa Internet Rankings, Alexa is a great site to evaluate the approximate page popularity on the internet, Alexa SiteInfo page has historically been the Swift Army knife for anyone wanting to quickly evaluate a webpage approx. ranking while compared to other pages)

Above legitimate bots are known to follow most if not all of W3C – World Wide Web Consorium (W3.Org) standards and therefore, they respect the content commands for allowance or restrictions on a single site as given from robots.txt but unfortunately many of the so called Bad-Bots or Mirroring scripts that are burning your Web Server CPU and Memory mentioned in previous article are either not following /robots.txt prescriptions completely or partially.

Hence with the robots.txt unrespective bots, the case the only way to get rid of most of the webspiders that are just loading your bandwidth and server hardware is to filter / block them is by using Apache's mod_rewrite through

.htaccess

file

Create if not existing in the DocumentRoot of your website .htaccess file with whatever text editor, or create it your windows / mac os desktop and transfer via FTP / SecureFTP to server.

I prefer to do it directly on server with vim (text editor)

vim /var/www/sites/your-domain.com/.htaccess

RewriteEngine On

IndexIgnore .htaccess */.??* *~ *# */HEADER* */README* */_vti*

SetEnvIfNoCase User-Agent "^Black Hole” bad_bot
SetEnvIfNoCase User-Agent "^Titan bad_bot
SetEnvIfNoCase User-Agent "^WebStripper" bad_bot
SetEnvIfNoCase User-Agent "^NetMechanic" bad_bot
SetEnvIfNoCase User-Agent "^CherryPicker" bad_bot
SetEnvIfNoCase User-Agent "^EmailCollector" bad_bot
SetEnvIfNoCase User-Agent "^EmailSiphon" bad_bot
SetEnvIfNoCase User-Agent "^WebBandit" bad_bot
SetEnvIfNoCase User-Agent "^EmailWolf" bad_bot
SetEnvIfNoCase User-Agent "^ExtractorPro" bad_bot
SetEnvIfNoCase User-Agent "^CopyRightCheck" bad_bot
SetEnvIfNoCase User-Agent "^Crescent" bad_bot
SetEnvIfNoCase User-Agent "^Wget" bad_bot
SetEnvIfNoCase User-Agent "^SiteSnagger" bad_bot
SetEnvIfNoCase User-Agent "^ProWebWalker" bad_bot
SetEnvIfNoCase User-Agent "^CheeseBot" bad_bot
SetEnvIfNoCase User-Agent "^Teleport" bad_bot
SetEnvIfNoCase User-Agent "^TeleportPro" bad_bot
SetEnvIfNoCase User-Agent "^MIIxpc" bad_bot
SetEnvIfNoCase User-Agent "^Telesoft" bad_bot
SetEnvIfNoCase User-Agent "^Website Quester" bad_bot
SetEnvIfNoCase User-Agent "^WebZip" bad_bot
SetEnvIfNoCase User-Agent "^moget/2.1" bad_bot
SetEnvIfNoCase User-Agent "^WebZip/4.0" bad_bot
SetEnvIfNoCase User-Agent "^WebSauger" bad_bot
SetEnvIfNoCase User-Agent "^WebCopier" bad_bot
SetEnvIfNoCase User-Agent "^NetAnts" bad_bot
SetEnvIfNoCase User-Agent "^Mister PiX" bad_bot
SetEnvIfNoCase User-Agent "^WebAuto" bad_bot
SetEnvIfNoCase User-Agent "^TheNomad" bad_bot
SetEnvIfNoCase User-Agent "^WWW-Collector-E" bad_bot
SetEnvIfNoCase User-Agent "^RMA" bad_bot
SetEnvIfNoCase User-Agent "^libWeb/clsHTTP" bad_bot
SetEnvIfNoCase User-Agent "^asterias" bad_bot
SetEnvIfNoCase User-Agent "^httplib" bad_bot
SetEnvIfNoCase User-Agent "^turingos" bad_bot
SetEnvIfNoCase User-Agent "^spanner" bad_bot
SetEnvIfNoCase User-Agent "^InfoNaviRobot" bad_bot
SetEnvIfNoCase User-Agent "^Harvest/1.5" bad_bot
SetEnvIfNoCase User-Agent "Bullseye/1.0" bad_bot
SetEnvIfNoCase User-Agent "^Mozilla/4.0 (compatible; BullsEye; Windows 95)" bad_bot
SetEnvIfNoCase User-Agent "^Crescent Internet ToolPak HTTP OLE Control v.1.0" bad_bot
SetEnvIfNoCase User-Agent "^CherryPickerSE/1.0" bad_bot
SetEnvIfNoCase User-Agent "^CherryPicker /1.0" bad_bot
SetEnvIfNoCase User-Agent "^WebBandit/3.50" bad_bot
SetEnvIfNoCase User-Agent "^NICErsPRO" bad_bot
SetEnvIfNoCase User-Agent "^Microsoft URL Control – 5.01.4511" bad_bot
SetEnvIfNoCase User-Agent "^DittoSpyder" bad_bot
SetEnvIfNoCase User-Agent "^Foobot" bad_bot
SetEnvIfNoCase User-Agent "^WebmasterWorldForumBot" bad_bot
SetEnvIfNoCase User-Agent "^SpankBot" bad_bot
SetEnvIfNoCase User-Agent "^BotALot" bad_bot
SetEnvIfNoCase User-Agent "^lwp-trivial/1.34" bad_bot
SetEnvIfNoCase User-Agent "^lwp-trivial" bad_bot
SetEnvIfNoCase User-Agent "^Wget/1.6" bad_bot
SetEnvIfNoCase User-Agent "^BunnySlippers" bad_bot
SetEnvIfNoCase User-Agent "^Microsoft URL Control – 6.00.8169" bad_bot
SetEnvIfNoCase User-Agent "^URLy Warning" bad_bot
SetEnvIfNoCase User-Agent "^Wget/1.5.3" bad_bot
SetEnvIfNoCase User-Agent "^LinkWalker" bad_bot
SetEnvIfNoCase User-Agent "^cosmos" bad_bot
SetEnvIfNoCase User-Agent "^moget" bad_bot
SetEnvIfNoCase User-Agent "^hloader" bad_bot
SetEnvIfNoCase User-Agent "^humanlinks" bad_bot
SetEnvIfNoCase User-Agent "^LinkextractorPro" bad_bot
SetEnvIfNoCase User-Agent "^Offline Explorer" bad_bot
SetEnvIfNoCase User-Agent "^Mata Hari" bad_bot
SetEnvIfNoCase User-Agent "^LexiBot" bad_bot
SetEnvIfNoCase User-Agent "^Web Image Collector" bad_bot
SetEnvIfNoCase User-Agent "^The Intraformant" bad_bot
SetEnvIfNoCase User-Agent "^True_Robot/1.0" bad_bot
SetEnvIfNoCase User-Agent "^True_Robot" bad_bot
SetEnvIfNoCase User-Agent "^BlowFish/1.0" bad_bot
SetEnvIfNoCase User-Agent "^JennyBot" bad_bot
SetEnvIfNoCase User-Agent "^MIIxpc/4.2" bad_bot
SetEnvIfNoCase User-Agent "^BuiltBotTough" bad_bot
SetEnvIfNoCase User-Agent "^ProPowerBot/2.14" bad_bot
SetEnvIfNoCase User-Agent "^BackDoorBot/1.0" bad_bot
SetEnvIfNoCase User-Agent "^toCrawl/UrlDispatcher" bad_bot
SetEnvIfNoCase User-Agent "^WebEnhancer" bad_bot
SetEnvIfNoCase User-Agent "^TightTwatBot" bad_bot
SetEnvIfNoCase User-Agent "^suzuran" bad_bot
SetEnvIfNoCase User-Agent "^VCI WebViewer VCI WebViewer Win32" bad_bot
SetEnvIfNoCase User-Agent "^VCI" bad_bot
SetEnvIfNoCase User-Agent "^Szukacz/1.4" bad_bot
SetEnvIfNoCase User-Agent "^QueryN Metasearch" bad_bot
SetEnvIfNoCase User-Agent "^Openfind data gathere" bad_bot
SetEnvIfNoCase User-Agent "^Openfind" bad_bot
SetEnvIfNoCase User-Agent "^Xenu’s Link Sleuth 1.1c" bad_bot
SetEnvIfNoCase User-Agent "^Xenu’s" bad_bot
SetEnvIfNoCase User-Agent "^Zeus" bad_bot
SetEnvIfNoCase User-Agent "^RepoMonkey Bait & Tackle/v1.01" bad_bot
SetEnvIfNoCase User-Agent "^RepoMonkey" bad_bot
SetEnvIfNoCase User-Agent "^Zeus 32297 Webster Pro V2.9 Win32" bad_bot
SetEnvIfNoCase User-Agent "^Webster Pro" bad_bot
SetEnvIfNoCase User-Agent "^EroCrawler" bad_bot
SetEnvIfNoCase User-Agent "^LinkScan/8.1a Unix" bad_bot
SetEnvIfNoCase User-Agent "^Keyword Density/0.9" bad_bot
SetEnvIfNoCase User-Agent "^Kenjin Spider" bad_bot
SetEnvIfNoCase User-Agent "^Cegbfeieh" bad_bot

<Limit GET POST>
order allow,deny
allow from all
Deny from env=bad_bot
</Limit>

Above rules are Bad bots prohibition rules have RewriteEngine On directive included however for many websites this directive is enabled directly into VirtualHost section for domain/s, if that is your case you might also remove RewriteEngine on from .htaccess and still the prohibition rules of bad bots should continue to work
Above rules are also perfectly suitable wordpress based websites / blogs in case you need to filter out obstructive spiders even though the rules would work on any website domain with mod_rewrite enabled.

Once you have implemented above rules, you will not need to restart Apache, as .htaccess will be read dynamically by each client request to Webserver

2. Testing .htaccess Bad Bots Filtering Works as Expected

In order to test the new Bad Bot filtering configuration is working properly, you have a manual and more complicated way with lynx (text browser), assuming you have shell access to a Linux / BSD / *Nix computer, or you have your own *NIX server / desktop computer running

Here is how:

lynx -useragent="Mozilla/5.0 (compatible; MegaIndex.ru/2.0; +http://megaindex.com/crawler)" -head -dump http://www.your-website-filtering-bad-bots.com/

Note that lynx will provide a warning such as:

Warning: User-Agent string does not contain "Lynx" or "L_y_n_x"!

Just ignore it and press enter to continue.

Two other use cases with lynx, that I historically used heavily is to pretent with Lynx, you're GoogleBot in order to see how does Google actually see your website?

Pretend with Lynx You're GoogleBot

lynx -useragent="Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)" -head -dump http://www.your-domain.com/

How to Pretend with Lynx Browser You are GoogleBot-Mobile

lynx -useragent="Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_1 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8B117 Safari/6531.22.7 (compatible; Googlebot-Mobile/2.1; +http://www.google.com/bot.html)" -head -dump http://www.your-domain.com/

Or for the lazy ones that doesn't have Linux / *Nix at disposal you can use WannaBrowser website

Wannabrowser – is a web based browser emulator which gives you the ability to change the User-Agent on each website req1uest, so just set your UserAgent to any bot browser that we just filtered for example set User-Agent to CheeseBot

The .htaccess rule earier added once detecting your browser client is coming in with the prohibit browser agent will immediately filter out and you'll be unable to access the website with a message like:

HTTP/1.1 403 Forbidden

Just as I've talked a lot about Index Bots, I think it is worthy to also mention three great websites that can give you a lot of Up to Date information on exact Spiders returned user-agent, common known Bot traits as well as a a current updated list with the Bad Bots etc.

Bot and Browser Resources information user-agents, bad-bots and odd Crawlers and Bots specifics

1. botreports.com
2. user-agents.org
3. useragentapi.com

An updated list with robots user-agents (crawler-user-agents) is also available in github here regularly updated by Caia Almeido

There are also a third party plugin (modules) available for Website Platforms like WordPress / Joomla / Typo3 etc.

Besides the listed on these websites as well as the known Bad and Good Bots, there are perhaps a hundred of others that might end up crawling your webdsite that might or might not need to be filtered, therefore before proceeding with any filtering steps, it is generally a good idea to monitor your HTTPD access.log / error.log, as if you happen to somehow mistakenly filter the wrong bot this might be a reason for Website Indexing Problems.

Hope this article give you some valueable information. Enjoy ! 🙂

Tags: article, blogs, browser, case, cause, client, com, common, content, CPU, desktop computer, filter bad spider search index bots htaccess, Hope, how to filter bad robots that doesnt help your website index, make, need, order, stop bad spammer and email harvesting bots from collecting content from your website .htaccess, substitute, text, time, Warning, webpage, website, website domain, Windows, working, www
Posted in Computer Security, Linux, System Administration, Various, Web and CMS | No Comments »

The Piratebay Away from Keyboard – Documentary Movie about the rise and fall of Torrent Sharing

Tuesday, February 26th, 2013

A friend of mine mentioned about a documentary movie on intellectual freedoms of Sharing Copyrighted data on the Internet. Probably every young person or middle aged person in Europe have downloaded from scandalous torrent tracker ThePirateBay.com. As of time of writting most of European Union countries has prohibited the use of Piratebay.com, because the torrent tracker site "carelessly" helps people to share copyrighted data using notorious BitTorrent data sharing protocol. The topic of should or shouldn't there be a copyright laws to prohibit sharing of files between ordinary relatively poor internet users like me has been an issue of legislation for years now. From judicial point of view and from business perspective, the companies and individuals holding copyright are loosing money from free distribution of their copyrighted works. However from a point of view well being of European Union citizens it is insane and violation of basic European union legislation which is lobbying for free and equal access to education of EU citizens. There has been numerous scandals, because The Piratebay is being convinced to be just a money laundry machine under the coverage of helping people educated itself, as i saw some investigation on thepiratebay, claiming most of its finances passes through a numerous offshore accounts which makes it impossible to track and money TPB generates from the website advertisements end up in someone's pocket who did not pay EU taxations. Even if this is true, I think the immaterial side of helping people to educate themselves by sharing the world's most important Movies, Music, Software etc. makes TPB more in service than harm to society.

The PirateBay – Away from Keyboard (Piratebay AFK Documentary on Torrent Sharing

Enjoy

Tags: com, education, european union, freedoms, laundry, money, person, point of view, poor, Sharing Copyrighted, Torrent Sharing, TPB
Posted in Curious Facts, Entertainment, Everyday Life, Various | No Comments »

Djigan – Derzi mne za Ruku (Hold me for the hand) – Nice Russian modern disco pop song

Thursday, January 24th, 2013

In Vkotankte (Vk.com) – or the so called Russian Facebook there is a functionality to listen music while putting info on your wall or just chatting with friends. It's very, very handy functionality which facebook lacks. There while listening to some random Russian songs I come across a very, very nice modern disco pop song, I'm sure many others will like it. Too sad people part of western culture knows nothing of what is happening in Russia and this part of the world. There is plenty of nice Russian cultural things and modern songs to listen to.

Djigan – Hold me for the hand (Derzi mne za ruku) / Джиган – Держи меня за руку

Tags: com, disco, functionality, music, plenty, pop, Ruku Hold, Russian Facebook, wall, western culture
Posted in Entertainment, Everyday Life | No Comments »

Did you that every single day there are …

Saturday, April 7th, 2012

Do you know that every single day there are:

150 Million Blogs being read
60 Million New Facebook Status Updates
140 Million New "Treets" …
2 Million New Videos Posted to Youtube per day
3.3 Billion! Product and Information Searches
188 Billion! Emails Sent …

This statistics were sent to me just few weeks, ago by a friend. I have no clue where he got the statistics, but the numbers are really amazing. From a business perspective point of view this numbers are tremendously HIGH! Nowadays only about 2.5 billion people are actively using the internet daily.

This means more than half of the humanity is still about to join using the internet in the 10 or 15 years to come. Though the continuous use of internet has a very bad impact on us. It is a tremendously big business opportunity field. With this said definitely business innovative people and enterpreneurs should reconsider, there strategic plans for potential products and extend or include the internet in anything they do in order to maximize profits.

All this is just news for anyone who is involved somehow actively with the net (like me), so system admins, web designers, programmers, use your brains and start making money from the internet. If one doesn't start with monetarizing his high tech skills, its quite likely some bad tied suit guy took the lead and made his millions or billions on our back 🙂

Tags: bout, com, humanity, Million Blogs, news, opportunity, point of view, programmers, statistics, system admins, use of internet
Posted in Curious Facts, Various | No Comments »

Tools to scan a Linux / Unix Web server for Malware and Rootkits / Lynis and ISPProtect – clean Joomla / WordPress and other CMS for malware and malicious scripts and trojan codes

Monday, March 14th, 2016

Linux-BSD-Unix-Rootkit-Malware-XSS-Injection-spammer-scripts-clean-howto-manual

If you have been hacked or have been suspicious that someone has broken up in some of the shared web hosting servers you happent o manage you already probably have tried the server with rkhuter, chroot and unhide tools which gives a general guidance where a server has been compromised

However with the evolution of hacking tools out there and the boom of Web security XSS / CSS / Database injections and PHP scripts vulnerability catching an intruder especially spammers has been becoming more and more hard to achieve.

Just lately a mail server of mine's load avarage increased about 10 times, and the CPU's and HDD I/O load jump over the sky.
I started evaluating the situation to find out what exactly went wrong with the machine, starting with a hardware analysis tools and a physical check up whether all was fine with the hardware Disks / Ram etc. just to find out the machine's hardware was working perfect.
I've also thoroughfully investigated on Logs of Apache, MySQL, TinyProxy and Tor server and bind DNS and DJBDns which were happily living there for quite some time but didn't found anything strange.

Not on a last place I investigated TOP processes (with top command) and iostat and realized the CPU high burst lays in exessive Input / Output of Hard Drive. Checking the Qmail Mail server logs and the queue with qmail-qstat was a real surprise for me as on the queue there were about 9800 emails hanging unsent, most of which were obviously a spam, so I realized someone was heavily spamming through the server and started more thoroughfully investigating ending up to a WordPress Blog temp folder (writtable by all system users) which was existing under a Joomla directory infrastructure, so I guess someone got hacked through the Joomla and uploaded the malicious php spammer script to the WordPress blog. I've instantly stopped and first chmod 000 to stop being execuded and after examing deleted view73.php, javascript92.php and index8239.php which were full of PHP values with binary encoded values and one was full of encoded strings which after being decoding were actually the recepient's spammed emails.
BTW, the view*.php javascript*.php and index*.php files were owned by www-data (the user with which Apache was owned), so obviously someone got hacked through some vulnerable joomla or wordpress script (as joomla there was quite obscure version 1.5 – where currently Joomla is at version branch 3.5), hence my guess is the spamming script was uploaded through Joomla XSS vulnerability).

As I was unsure wheteher the scripts were not also mirrored under other subdirectories of Joomla or WP Blog I had to scan further to check whether there are no other scripts infected with malware or trojan spammer codes, webshells, rootkits etc.
And after some investigation, I've actually caught the 3 scripts being mirrored under other webside folders with other numbering on filename view34.php javascript72.php, index8123.php etc..

I've used 2 tools to scan and catch malware the trojan scripts and make sure no common rootkit is installed on the server.

1. Lynis (to check for rootkits)
2. ISPProtect (Proprietary but superb Website malware scanner with a free trial)

1. Lynis – Universal security auditing tool and rootkit scanner

Lynis is actually the well known rkhunter, I've used earlier to check servers BSD and Linux servers for rootkits.
To have up-to-date version of Lynis, I've installed it from source:

cd /tmp
wget https://cisofy.com/files/lynis-2.1.1.tar.gz
tar xvfz lynis-2.1.1.tar.gz
mv lynis /usr/local/
ln -s /usr/local/lynis/lynis /usr/local/bin/lynis

Then to scan the server for rootkits, first I had to update its malware definition database with:

lynis update info

Then to actually scan the system:

lynis audit system

Plenty of things will be scanned but you will be asked on a multiple times whether you would like to conduct different kind fo system services and log files, loadable kernel module rootkits and common places to check for installed rootkits or server placed backdoors. That's pretty annoying as you will have to press Enter on a multiple times.

Once scan is over you will get a System Scan Summary like in below screenshot:

lynis-scanned-server-for-rootkit-summer-results-linux-check-for-backdoors-tool

Lynis suggests also a very good things that might be tampered to make the system more secure, so using some of its output when I have time I'll work out on hardening all servers.

To prevent further incidents and keep an eye on servers I've deployed Lynis scan via cron job once a month on all servers, I've placed under a root cronjob on every first dae of month in following command:

server:~# crontab -u root -e
0 3 1 * * /usr/local/bin/lynis –quick 2>&1 | mail -s "lynis output of my server" admin-mail@my-domain.com)

2. ISPProtect – Website malware scanner

ISPProtect is a malware scanner for web servers, I've used it to scan all installed CMS systems like WordPress, Joomla, Drupal etc.
ISPProtect is great for PHP / Pyhon / Perl and other CMS based frameworks.
ISPProtect contains 3 scanning engines: a signature based malware scanner, a heuristic malware scanner, and a scanner to show the installation directories of outdated CMS systems.
Unfortunately it is not free software, but I personally used the FREE TRIAL option which can be used without registration to test it or clean an infected system.
I first webserver first locally for the infected site and then globally for all the other shared hosting websites.

As I wanted to check also rest of hosted websites, I've run ISPProtect over the all bunch of installed websites.
Pre-requirement of ISPProtect is to have a working PHP Cli and Clamav Anti-Virus installed on the server thus on RHEL (RPM) based servers make sure you have it installed if not:

server:~# yum -y install php

server:~# yum -y install clamav

Debian based Linux servers web hosting admins that doesn't have php-cli installed should run:

server:~# apt-get install php5-cli

server:~# apt-get install clamav

Installing ISPProtect from source is with:

mkdir -p /usr/local/ispprotect
chown -R root:root /usr/local/ispprotect
chmod -R 750 /usr/local/ispprotect
cd /usr/local/ispprotect
wget http://www.ispprotect.com/download/ispp_scan.tar.gz
tar xzf ispp_scan.tar.gz
rm -f ispp_scan.tar.gz
ln -s /usr/local/ispprotect/ispp_scan /usr/local/bin/ispp_scan

To initiate scan with ISPProtect just invoke it:

server:~# /usr/local/bin/ispp_scan

I've used it as a trial

Please enter scan key: trial
Please enter path to scan: /var/www

You will be shown the scan progress, be patient because on a multiple shared hosting servers with few hundred of websites.
The tool will take really, really long so you might need to leave it for 1 hr or even more depending on how many source files / CSS / Javascript etc. needs to be scanned.

Once scan is completed scan and infections found logs will be stored under /usr/local/ispprotect, under separate files for different Website Engines and CMSes:

After the scan is completed, you will find the results also in the following files:

Malware => /usr/local/ispprotect/found_malware_20161401174626.txt
Wordpress => /usr/local/ispprotect/software_wordpress_20161401174626.txt
Joomla => /usr/local/ispprotect/software_joomla_20161401174626.txt
Drupal => /usr/local/ispprotect/software_drupal_20161401174626.txt
Mediawiki => /usr/local/ispprotect/software_mediawiki_20161401174626.txt
Contao => /usr/local/ispprotect/software_contao_20161401174626.txt
Magentocommerce => /usr/local/ispprotect/software_magentocommerce_20161401174626.txt
Woltlab Burning Board => /usr/local/ispprotect/software_woltlab_burning_board_20161401174626.txt
Cms Made Simple => /usr/local/ispprotect/software_cms_made_simple_20161401174626.txt
Phpmyadmin => /usr/local/ispprotect/software_phpmyadmin_20161401174626.txt
Typo3 => /usr/local/ispprotect/software_typo3_20161401174626.txt
Roundcube => /usr/local/ispprotect/software_roundcube_20161401174626.txt

ISPProtect is really good in results is definitely the best malicious scripts / trojan / trojan / webshell / backdoor / spammer (hacking) scripts tool available so if your company could afford it you better buy a license and settle a periodic cron job scan of all your servers, like lets say:

server:~# crontab -u root -e
0 3 1 * * /usr/local/ispprotect/ispp_scan –update && /usr/local/ispprotect/ispp_scan –path=/var/www –email-results=admin-email@your-domain.com –non-interactive –scan-key=AAA-BBB-CCC-DDD

Unfortunately ispprotect is quite expensive so I guess most small and middle sized shared hosting companies will be unable to afford it.
But even for a one time run this tools worths the try and will save you an hours if not days of system investigations.
I'll be glad to hear from readers if aware of any available free software alternatives to ISPProtect. The only one I am aware is Linux Malware Detect (LMD).
I've used LMD in the past but as of time of writting this article it doesn't seems working any more so I guess the tool is currently unsupported / obsolete.

Tags: backdoors find linux, catch trojan linux, checking, cms, com, cron job, Debian, Joomla Wordpress, Linux Unix Web, malicious scripts on server linux, Malware, php, recover from hacked website, scanner, scripts, tar, Tools, usr, www
Posted in Everyday Life, Linux, PHP, System Administration, Various, Web and CMS | No Comments »

Use mac PC built-in camera to make / take pictures on Mac OS X macbookair notebook with Photo Booth

Friday, February 26th, 2016

It seems we lost our Good high quality Digital Camera somewhere and I was in need urgently to make a good quality photo (my ZTE Phone) has a very bad camera, so I got the idea to use Macbookair's camera as it has better
resolution to picture my present a Tank Tort 🙂 hand made by my wife as a present for the Day of the Defender of the Fatherland which is a major feast in Russia, Belarus and many of the ex-Soviet Union members communist countries.

Actually using build in camare in MacBookAir is a handy thing for people mising at the moment a good high quality digital camera as it is thin and light and build in MacBook cam can be used to make Videos and Pictures exactly the same way
as an ordinary Tablet Computer is used so commonly nowadays by many:

In other words I needed for the Mac OS X equivalent to Cheese's (Photo and Video) capturer program for Linux.

Luckily for people interested in using their Mac OS notebook as a amateur camera this is easy by using default shipped Mac Application called:

Photo Booth app

To Launch Photo Booth app it just look it up in Finder and double click it:

PhotoBooth-how-to-take-photos-on-macosx

Clicking the large red button underneath the preview area will take a picture after an optional countdown.

Tort Tank of Svetka

Besides being able to capture Video and Pictures from Mac's camera it could add also some nice effects to taken pictures and videos (supports a basic video editing) features and effects.

The effects you can choose are are: Sepia, Black and White, Glow, Comic Book, Normal, Colored Pencil, Thermal Camera, X-Ray, and Pop Art. There are also effects that change the person in the picture using these effects: Bulge, Dent, Twirl, Squeeze, Mirror, Light Tunnel, Fish Eye, and Stretch. Actually photographic filters of Photo Booth are very similar to Adobe Photoshop.

make-picture-on-mac-photobooth-effects-screenshot
By default Photo Booth will create picture, howver

Photo Booth saves your photos as JPEG files in a folder named Photo Booth, located in your home folder.

Choose File > Reveal in Finder

to see your picture files.

A much better way to be able to easily see and access all taken Pictures and Videos with Photo Booth is to

open Terminal

and type:

——-

$ cd Pictures
$ ln -s Photo\ Booth\ Library/Pictures/ PhotoBoothPics

This will make Link to pictures be easily accessible from your Finder -> Pictures folder

Applying custom photo backgrounds

A very useful feature of Photo Booth is that the user can apply backdrops to provide an effect similar to a green screen. When a backdrop is selected, a message appears telling the user to step away from the camera. Once the background is analyzed, the user steps back in front of the camera and is shown in front of the chosen backdrop.

For people who prefer to take photos using a console program on Mac OS I guess you should take a look at ffpeg
Here is one more snapshot of the Tort Tank snapshot made with the Macbookair of Svetlana 🙂

P.S. If you like the Tort Tank and you happen to live in Sofia Bulgaria, you can order it by dropping me a comment with request 🙂

Enjoy ! 🙂

Tags: Adobe Photoshop, apple, com, digital camera, good, Launch Photo Booth, look, make, notebook, Pc, picture, program, question, Tort Tank, video editing, Videos, www
Posted in Curious Facts, Entertainment, Everyday Life, Mac OS X, Various | No Comments »

☩ Walking in Light with Christ – Faith, Computing, Diary

Posts Tagged ‘com’

Djigan – Derzi mne za Ruku (Hold me for the hand) – Nice Russian modern disco pop song

Did you that every single day there are …

Use mac PC built-in camera to make / take pictures on Mac OS X macbookair notebook with Photo Booth

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