Posts Tagged ‘sudo’
Wednesday, October 10th, 2018 
If you're a sysadmin / developer whose boss requires a migration of Stored Data, Database structures or Web Objects to Amazon Web Services / Google Clourd or you happen to be a DevOps Engineer you will certainly need to have installed as a minimumum amazon AWS and Google Clouds clients to do daily routines and script stuff in managing cloud resources without tampering to use the Web GUI interface.
Here is how to install the aws, gcloud, oc, az and cf next to your kubernetes client (kubectl) on your Linux Desktop.
1. Install Google Cloud gcloud (to manage Google Cloud platform resources and developer workflow
Here is few cmds to run to install gcloud, gcloud alpha, gcloud beta, gsutil, and bq commands to manage your Google Cloud from CLI
a.) On Debian / Ubuntu / Mint or any other deb based distro
# Create environment variable for correct distribution
export CLOUD_SDK_REPO="cloud-sdk-$(lsb_release -c -s)"
# Add the Cloud SDK distribution URI as a package source
# echo "deb http://packages.cloud.google.com/apt $CLOUD_SDK_REPO main" | sudo tee -a /etc/apt/sources.list.d/google-cloud-sdk.list
# Import the Google Cloud Platform public key
$ sudo curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add –
# Update the package list and install the Cloud SDK
$ sudo apt-get update && sudo apt-get install google-cloud-sdk
b) On CentOS, RHEL, Fedora Linux and other rpm based ones
$ sudo tee -a /etc/yum.repos.d/google-cloud-sdk.repo << EOM
[google-cloud-sdk]
name=Google Cloud SDK
baseurl=https://packages.cloud.google.com/yum/repos/cloud-sdk-el7-x86_64
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg
https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
EOM
# yum install google-cloud-sdk
That's all now the text client to talk to Google Cloud's API gcloud is installed under
/usr/bin/gcloud
Latest install instructions of Google Cloud SDK are here.
2. Install AWS Cloud command line interface tool for managing AWS (Amazon Web Services)
AWS client is dependent on Python PIP so before you proceed you will have to install python-pip deb package if on Debian / Ubuntu Linux use apt:
# apt-get install –yes python-pip
It is also possible to install newest version of PIP a tiny shell script provided by Amazon get-pip.py
# curl -O https://bootstrap.pypa.io/get-pip.py
# python get-pip.py –user
# pip install awscli –upgrade –user
3. Install Azure Cloud Console access CLI command interface
On Debian / Ubuntu or any other deb based distro:
# AZ_REPO=$(lsb_release -cs)
# echo "deb [arch=amd64] https://packages.microsoft.com/repos/azure-cli/ $AZ_REPO main" | \
$ sudo tee /etc/apt/sources.list.d/azure-cli.list
# curl -L https://packages.microsoft.com/keys/microsoft.asc | sudo apt-key add –
$ sudo apt-get update
$ sudo apt-get install apt-transport-https azure-cli
Finaly to check that Azure CLI is properly installed run simple login with:
$ az login
$ sudo rpm –import https://packages.microsoft.com/keys/microsoft.asc
$ sudo sh -c 'echo -e "[azure-cli]\nname=Azure CLI\nbaseurl=https://packages.microsoft.com/yumrepos/azure-cli\nenabled=1\ngpgcheck=1\ngpgkey=https://packages.microsoft.com/keys/microsoft.asc" > /etc/yum.repos.d/azure-cli.repo'
$ sudo yum install azure-cli
$ az login
For Latest install instructions check Amazon's documentation here
4. Install OpenShift OC CLI tool to access OpenShift Open Source Cloud
Even thought OpenShift has its original Redhat produced package binaries, if you're not on RPM distro it is probably
best to install using official latest version from openshift github repo.
As of time of writting this article this is done with:
# wget https://github.com/openshift/origin/releases/download/v1.5.1/openshift-origin-client-tools-v1.5.1-7b451fc-linux-64bit.tar.gz
tar –xvf openshift-origin-client-tools-v1.5.1-7b451fc-linux-64bit.tar.gz
# # mv openshift-origin-client-tools-v1.5.1-7b451fc-linux-64bit oc-tool
# cd oc-tool
# echo'export PATH=$HOME/oc-tool:$PATH' >> ~/.bashrc
To test openshift, try to login to OpenShift cloud:
$ oc login
Server [https://localhost:8443]: https://128.XX.XX.XX:8443
Latest install instructions on OC here
5. Install Cloud Foundry cf CLI Cloud access tool
a) On Debian / Ubuntu Linux based distributions, do run:
$ wget -q -O – https://packages.cloudfoundry.org/debian/cli.cloudfoundry.org.key | sudo apt-key add –
$ echo "deb https://packages.cloudfoundry.org/debian stable main" | sudo tee /etc/apt/sources.list.d/cloudfoundry-cli.list
$ sudo apt-get update
$ sudo apt-get install cf-cli
b) On RHEL Enterprise Linux / CentOS and Fedoras
$ sudo wget -O /etc/yum.repos.d/cloudfoundry-cli.repo https://packages.cloudfoundry.org/fedora/cloudfoundry-cli.repo
$ sudo yum install cf-cli
For latest install insructions on cf cli check Cloud Foundry's install site
There plenty of other Cloud providers with the number exponentially growing and most have their own custom cli tools to access but as there use is not so common as the 5 ones mentioned below, I've omited 'em. If you're interested to know the complete list of Cloud Providers providing Cloud Services check here.
6. Install Ruby GEMs RHC tools collection
If you have to work with Redhat Cloud Storage / OpenShift you will perhaps want to install also (RHC) Redhat Collection Tools.
Assuming that the Linux system is running an up2date version of ruby programming language do run:
root@jeremiah:~# gem install rhc
Fetching: net-ssh-5.0.2.gem (100%)
Successfully installed net-ssh-5.0.2
Fetching: net-ssh-gateway-2.0.0.gem (100%)
Successfully installed net-ssh-gateway-2.0.0
Fetching: net-ssh-multi-1.2.1.gem (100%)
Successfully installed net-ssh-multi-1.2.1
Fetching: minitar-0.7.gem (100%)
The `minitar` executable is no longer bundled with `minitar`. If you are
expecting this executable, make sure you also install `minitar-cli`.
Successfully installed minitar-0.7
Fetching: hashie-3.6.0.gem (100%)
Successfully installed hashie-3.6.0
Fetching: powerbar-1.0.18.gem (100%)
Successfully installed powerbar-1.0.18
Fetching: minitar-cli-0.7.gem (100%)
Successfully installed minitar-cli-0.7
Fetching: archive-tar-minitar-0.6.1.gem (100%)
'archive-tar-minitar' has been deprecated; just install 'minitar'.
Successfully installed archive-tar-minitar-0.6.1
Fetching: highline-1.6.21.gem (100%)
Successfully installed highline-1.6.21
Fetching: commander-4.2.1.gem (100%)
Successfully installed commander-4.2.1
Fetching: httpclient-2.6.0.1.gem (100%)
Successfully installed httpclient-2.6.0.1
Fetching: open4-1.3.4.gem (100%)
Successfully installed open4-1.3.4
Fetching: rhc-1.38.7.gem (100%)
===========================================================================
If this is your first time installing the RHC tools, please run 'rhc setup'
===========================================================================
Successfully installed rhc-1.38.7
Parsing documentation for net-ssh-5.0.2
Installing ri documentation for net-ssh-5.0.2
Parsing documentation for net-ssh-gateway-2.0.0
Installing ri documentation for net-ssh-gateway-2.0.0
Parsing documentation for net-ssh-multi-1.2.1
Installing ri documentation for net-ssh-multi-1.2.1
Parsing documentation for minitar-0.7
Installing ri documentation for minitar-0.7
Parsing documentation for hashie-3.6.0
Installing ri documentation for hashie-3.6.0
Parsing documentation for powerbar-1.0.18
Installing ri documentation for powerbar-1.0.18
Parsing documentation for minitar-cli-0.7
Installing ri documentation for minitar-cli-0.7
Parsing documentation for archive-tar-minitar-0.6.1
Installing ri documentation for archive-tar-minitar-0.6.1
Parsing documentation for highline-1.6.21
Installing ri documentation for highline-1.6.21
Parsing documentation for commander-4.2.1
Installing ri documentation for commander-4.2.1
Parsing documentation for httpclient-2.6.0.1
Installing ri documentation for httpclient-2.6.0.1
Parsing documentation for open4-1.3.4
Installing ri documentation for open4-1.3.4
Parsing documentation for rhc-1.38.7
Installing ri documentation for rhc-1.38.7
Done installing documentation for net-ssh, net-ssh-gateway, net-ssh-multi, minitar, hashie, powerbar, minitar-cli, archive-tar-minitar, highline, commander, httpclient, open4, rhc after 10 seconds
13 gems installed
root@jeremiah:~#
To start with rhc next do:
rhc setup
rhc app create my-app diy-0.1
and play with it to install software create services on the Redhat cloud.
Closure
This are just of the few of the numerous tools available and I definitely understand there is much more to be said on the topic.
If you can remember other tools tor interesting cloud starting up tips about stuff to do on a fresh installed Linux PC to make life easier with Cloud / PaaS / SaaS / DevOps engineer please drop a comment.
Tags: apt-get, AWS, az, cf, Cloud, cloud tools, com, docs, gcloud, google, Install, linux?, list, make cloud access from cli tools, oc, packages, sudo, work
Posted in Cloud services, Linux, System Administration | No Comments »
Saturday, October 28th, 2017 
1. Update binary packages
First thing to do just like on any new operating system install is to update / patch the server
# freebsd-update fetch
# freebsd-update install
2. Update FreeBSD port packages
As a FreeBSD administrator you will need ports every now and then so make sure you have them at their latest release for your FBSD release
# pkg update
# pkg upgrade
3. Install editors and bash
# pkg install nano vim joe bash bash_completion
4. Install sudo
To be able to run commands without becoming superuser root just like on any Linux you will probably want to have sudo package installed
# pkg install sudo
Sudo config file is under /usr/local/etc/sudoers
To edit it with syntax check enabled use visudo
# visudo
…
# sudo pkg update
If you want a regular account to have root superuser edit / modify and do things permissions
# pw groupmod wheel -M your_user_name
Then to make the wheel permissions work add to sudoers:
%wheel ALL=(ALL=ALL) ALL
5. FreeBSD modify personal information for account
# chpass your_user_name
To change your account and others to use bash instead of default freebsd csh
# csh -s /bin/bash your_user_name
7. Set a Static IP address for a FreeBSD server and configure DNS
Edit /etc/rc.local to look something like so
#ifconfig_em0="DHCP"
ifconfig_em0="inet 192.168.1.100 netmask 255.255.255.0"
# default gateway
defaultrouter="192.168.1.1"
/etc/rc.conf is also the file where you can easily enable / disable freebsd startup scripts
To restart network interafaces just like Debian Linux's /etc/init.d/networking restart type
# service netif restart
# service routing restart
To set Google DNS in FreeBSD just like in Linux add the IPs with nameserver prefix to /etc/resolv.conf
# echo 'nameserver 8.8.8.8' >> /etc/resolv.conf
# echo 'nameserver 8.8.8.8' >> /etc/resolv.conf
# echo 'search your-domain-name' >> /etc/resolv.conf
– If you need to change the hostname of the FreeBSD server change in /etc/rc.conf
hostname="your-freebsdhostname"
– To add multiple IP addresses to a network interface on FBSD add line like below to /etc/rc.conf
ifconfig_em0_alias0="192.168.1.5 netmask 255.255.255.255"
ifconfig_em0_alias1="192.168.1.6 netmask 255.255.255.255"
…
To apply changes and bring up the newly set multiple IPs
# service netif restart
8. Setting up proper timezone
If for some reason the Time zone is improperly set during FreeBSD install, you can later set that with
# tzsetup
9. Set up ntp time server synchronization daemon
# vim /etc/rc.conf
ntpd_enable="YES"
ntpd_sync_on_start="YES"
First command will bring up NTP server at start up and second make it synchroniza with Internet NTP servers, to restart ntp so it set proper time
immediately
# service ntpd start
10. Add additional SWAP space to FreeBSD server after install
– First we need to create the swap file with command and then set up proper permissions for it
# truncate -S 3G /swapf
# chmod 0600 /swapf
– Then to make the swapf being used on boot we need to add it to /etc/fstab
# echo "md99 none swap sw,file=/swapf,late 0 0" >> /etc/fstab
To immediately apply the new added swap to be used by the system run:
# swapon -aqL
To check various things on how swap is configured use
# swapinfo -g
11. Configure Firewall in FreeBSD
# vim /etc/rc.conf
firewall_enable="YES"
firewall_script="/usr/local/etc/ipfw.rules"
A very basic firewall to add to ipfw.rules file would be something like so:
$IPF 70 allow all from any to any out keep-state
$IPF 80 allow icmp from any to any
# open port ftp
$IPF 110 allow tcp from any to any 21 in
$IPF 120 allow tcp from any to any 21 out
# 22 for ssh
$IPF 130 allow tcp from any to any 22 in
$IPF 140 allow tcp from any to any 22 out
# mail port 25
$IPF 150 allow tcp from any to any 25 in
$IPF 160 allow tcp from any to any 25 out
# dns (53) udp and tcp in
$IPF 170 allow udp from any to any 53 in
$IPF 175 allow tcp from any to any 53 in
# dns (53) udp and tcp out
$IPF 180 allow udp from any to any 53 out
$IPF 185 allow tcp from any to any 53 out
# http (80),
$IPF 200 allow tcp from any to any 80 in
$IPF 210 allow tcp from any to any 80 out
# deny and log everything
$IPF 500 deny log all from any to any
To launch the firewall
# service ipfw start
To list current FreeBSD Firewall rules use
# ipfw list
Finally if you need to check your connections to the server just like Linux's netstat you might consider using sockstat comand
# sockstat -4 -6
…
– 4 -6 will list you network connections for ipv4 and ipv6 both tcp and udp
Tags: chpass, freebsd, fresh install, howto, ifconfig, Networking, ntp, pkg, routing, server, sudo
Posted in Everyday Life, FreeBSD, System Administration, Various | No Comments »
Friday, February 19th, 2016 
If you're looking for just Mac OS X, console version of rar and unrar then standard WinRar website binaries for Mac should be perfect for you.
If you're an advanced Mac OS X user with UNIX background and you've already installed Mac Ports or Brew – The Missing package manager for Mac OS X
To install WinRar on Mac (with brew) with:
macosx# brew install unrar
If you're using MacPorts instead:
macosx:/home$ sudo port install unrar
However console version isn't the best choice for my wife which is not a console ninja, so I had to look and install some oher Graphic Interface program 🙂
As I don't like using AppleStore (I can't even properly register for an Apple Store ID,as I'm required to fill in my credit card … )
Hence I looked online on some WinRar dearchiver GUIs and found IZip which is natively a ZIP archiver but also supports .RAR Archives.
Though IZIp website give the impression IZip is a great tiny prog, once installing the .DMG downloaded from the website and installing into Applications it turned out IZip is currently crashing on the Mac Book Air with Mac OS X 10.8.5 – Mountain Lion …
If you want a simplistic interface program you would probably want to check out UnrarX though I personally didin't liked that one because it is not properly handing UTF-8 and CP-1251 filenames written in Russian, Bulgarian Cyrillic and probably also Chineese, Viatnamese and other exotic language encodings.
After few more minutes of searching I finally got KEKA – The Free Mac OSX file archiver.
Though the program Logo is a little scary, Keka turned to be very nice tiny, easy to install WinRAR GUI interfaced program for Mac OS X and the installation comes to standard download and run of .DMG file and moving it to the Finder Applications.
Once installed, if you turn to have a .rar file association issues (by default in my case) files were opened with VLC. To change the file type association of a certain file on the Mac I've had to press Command (button) + I over the .rar extensioned file, e.g:
- Command + I
- Click to expand the “Open with” section within that files info screen
- From the pull down menu, select the application you want to open this specific file with
- Close the Get Info window
Tags: association, best choice, DMG, file, How to, program, rar, sudo, turn, version
Posted in Everyday Life, Mac OS X, Various | 1 Comment »
Monday, August 18th, 2014 
tar: Error exit delayed from previous errors
error is a very common error encountered when creating archives (or backing up server configurations / websites / sql binary data). The error is quite unexplanatory and whenever creating files verbose in order to see the files added to archve in "real time" with lets say:
tar -czvf /tmp/filename_backup_date-of-backup.tar.gz /home/websites /home/sql
its pretty hard to track on exactly which file is the backup producing the Error exit delayed from previous errors, this is especially the case whenever adding to archive directories containing millions of tiny few kilobyte sized files. Many novice on uncautious Linux admins , might simply ignore the warning if they're in a hurry / are having excessive work to be done as there will be .tar.gz backup produced and whenever uncompressed most of the files are there and the backup error would seem not of a big issue.
However as backuping files is vital stuff, especially when moving the files from a server to be decomissioned you have to be extra careful and make the backup properly, e.g. figure out the cause of the error, to do so log the full output of tar operations with tee command, like so:
tar -czvf /tmp/filename_backup_date-of-backup.tar.gz /home/websites/ /home/sql | tee /tmp/backup_tar_full_output.log
Then you will have to review the file and lookup for errors with less search string – / (slash) – look for "error" and "permission den" keywords and this should point you to what is causing the error. In cases when millions of files are to be archived, the log might grow really big and hard to process, therefore a much quicker way to understand what's happening is to only log and show in shell standard output last file error with > (shell redirect):
tar -czvf /tmp/filename_backup_date-of-backup.tar.gz /home/websites /home/sql > /tmp/backup_failure-cause.log
tar: www.ur-website.com-http/2.0.63/conf/tnsnames.ora.20080918: Cannot open: Permission denied
tar: Removing leading `/' from member names
The error indicates clearly the cause of error is lack of Permissions to read the file tnsnames.ora.20080918 so solution is to either grant permissions to non-root user with (chmod / chown) cmds, in my case grant perms to user hipo with which tar is ran, or run again the website backup with superuser, I usually just run with root user to prevent tampering with original permissions, e.g. to solve the error, either:
$ su root
# tar -czvf /tmp/filename_backup_date-of-backup.tar.gz /home/websites /home/sql
Or even better if sudo is installed and user is added to /etc/sudoers file
$ sudo tar -czvf /tmp/filename_backup_date-of-backup.tar.gz /home/websites /home/sql
Though permission errors is the most often reason for:
tar: Error exit delayed from previous errors, you should keep in mind that in some cases the error might be caused due to failing RAID membered disk drive or single hdd failure on systems that are not in some RAID array
Tags: Cannot, cause and solution, file, gz, home, log, root user, server, sudo, tar
Posted in Linux, Linux Backup tools, Remote System Administration, System Administration | No Comments »
Saturday, June 21st, 2014 
For people running Mac OS X, the question of how is it possible to use 2 skype accounts in parallel on Mac probably makes good sense?
I don't own a Mac notebook and thefore I'm a Mac newbie, however, I'm into situation where I and my wife Svetlana went (for 3 days) to my hometown Dobrich and we have with us only her Mac OS X powered Mac Book air.
One user is already logged in Skype, (my wife) is expecting some relatives and friends to contact us and same time I had to login to check few servers via ssh and discuss some server downtime issues from yesterday in Skype .
Thus we need 2 skype instances to run separately on her Macbook air powered PC with Mac OS X Leopard
Earlier I've blogged how to make 2 and more Skype accounts work simultaneously on one Windows PC because I had to set it up for a company, in this short article I will explain how is possible to run many skype clients on Mac OS X.
1. Open Mac Terminal from Finder
2. In Terminal run the first Skype Instance
Type in Terminal:
open /Applications/Skype.app/Contents/MacOS/Skype
3. Run Second Skype instance
In older Skype Mac OS versions, I read the
/secondary
Skype command option was there and could be used to run a second parallel skype instance on Mac, however in newer releases this option was removed and if you try to invoke it warning window pops up saying an instance is already running.
To get around the issue and run the second Skype, quickest way is to run another Skype client under privileged user through sudo command (this is unsecure – but anyways as Mac OS is proprietary and we don't have access to code and probably there are tons of spy and report software integrated into the OS, it doesn't really matter.)
To get around the issue and run the second Skype, quickest way is to run another Skype client under privileged user through sudo command (this is unsecure – but anyways as Mac OS is proprietary and we don't have access to code and probably there are tons of spy and report software integrated into the OS, it doesn't really matter.)
4. Script it into 2nd_skype.sh for later use
To run and use two parallel skypes regularly it might be useful to make shell script out of it and place it somewhere, 2nd_skype.sh script should be something like:
#!/bin/bash
open /Applications/Skype.app/Contents/MacOS/Skype
sudo /Applications/Skype.app/Contents/MacOS/Skype
Then make the script executable with:
chmod a+x 2nd_skype.sh
5. Run more than 2 Skypes (Run multiple Skypes on same Mac PC hack)
There is another "hack" method with deleting the Skype.pid (Process ID). Skype recognize where it is running by checking its Skype.pid on start up.
Deleting the pid after each next Skype client launch, allow the user to run as many Skypes as you want on Mac OS X but it is not clear for how long it time it will work.
rm -f ~/Library/Application Support/Skype/Skype.pid
Then launch again Skype in background from Mac Terminal
open -nW '/Application/Skype.app' &
In case if you wonder why the open command is used, since above line could be run also directly and Skype will pop-up, by using open command you instruct the program to detach itself from Terminal from which it run, so later if Terminal is closed Skype app. will not terminate.
Another approach is to create, a many users lets say 5 users and use the Skype sudo run method each client with a separate user.
sudo user1 /Applications/Skype.app/Contents/MacOS/Skype
sudo user2 /Applications/Skype.app/Contents/MacOS/Skype
sudo user3 /Applications/Skype.app/Contents/MacOS/Skype
sudo user4 /Applications/Skype.app/Contents/MacOS/Skype
sudo user5 /Applications/Skype.app/Contents/MacOS/Skype
I enclose the script with the custom icon (Skype) ready to be launched and Voila, on script launch Skype multiple login prompts pops up.
For the lazy ones who don't want to tamper with writting scripts or doing hacks to run Skype multiple times on Mac there is even a Multi Skype Launcher app for Mac.
Tags: Applications Skype, check, code, command, contact, Deleting, good, Mac Book, make, OS, pops, question, run, sense, shell script, software, sudo, yesterday
Posted in Curious Facts, Everyday Life, Mac OS X, Various | 3 Comments »
Saturday, March 1st, 2014
Dune II: The Building of a Dynasty (known also as Dune II: Battle for Arrakis in Europe is a game that my generation will never forget. Dune 2 is the "first" computer Real Time Strategy (RTE) game of the genre of the Warcraft I and Warcraft II / III and later Command and Conquer – Red Aleart, Age of Empires I / II and Starcraft …
I've grown up with Dune2 and the little computer geek community in my school was absolutely crazy about playing it. Though not historically being the first Real Time Strategy game, this Lucas Inc.
game give standards that for the whole RTE genre for years and will stay in history of Computer Games as one of best games of all times.
I've spend big part of my teenager years with my best friends playing Dune2 and the possibility nowadays to resurrect the memories of these young careless years is a blessing. Younger computer enthusiasts and gamers probably never heard of Dune 2 and this is why I decided to place a little post here about this legendary game.
Its worthy out of curiosity or for fun to play Dune 2 on modern OS be it Windows or Linux. Since Dune is DOS game, it is necessary to play it via DOS emulator i.e. – (DosBox).
Here is how I run dune2 on my Debian Linux:
1. Install dosbox DOS emulator
apt-get install --yes dosbox
2. Download Dune2 game executable
You can download my mirror of dune2 here
Note that you will need unzip to uanrchive it, if you don't have it installed do so:
apt-get install --yes unzip
cd ~/Downloads/
wget https://www.pc-freak.net/files/dune-2.zip
3. Unzip archive and create directory to mount it emulating 'C:\' drive
mkdir -p ~/.dos/Dune2
cd ~/.dos/Dune2
unzip ~/Downloads/dune-2.zip
4. Start dosbox and create permanent config for C: drive auto mount
dosbox
To make C:\ virtual drive automatically mounted you have to write a dosbox config from inside dbox console
config -writeconf /home/hipo/.dosbox.conf
My home dir is in /home/hipo, change this with your username /home/username
Then exit dosbox console with 'exit' command
To make dune2 game automatically mapped on Virtual C: drive:
echo "mount c /home/hipo/.dos" >> ~/.dosbox.conf
Further to make dosbox start each time with ~/.dosbox.conf add alias to your ~/.bashrc
vim ~/.bashrc
echo "alias dosbox='dosbox -conf /home/hipo/.dosbox.conf'" >> ~/.bashrc
source ~/.bashrc
Then to run DUNE2 launch dosbox:
dosbox
and inside console type:
c:
cd Dune2
Dune2.exe
For the lazy ones who would like to test dune you can play dune 2 online on this website
Tags: alias, bashrc, best games, Computer Games, computer geek, config, debian linux, directory, DoS, dosbox, Download Dune2, drive, echo, exit, game, games, history, home, Install, Linux, Lucas Inc, OS, Play, Real Time Strategy, RTE, Start, sudo, unzip, Windows, zip
Posted in Entertainment, Everyday Life, Games Linux, Various | No Comments »
Monday, January 23rd, 2012 
1. Add Medibuntu package repository
root@ubuntu:~# wget --output-document=/etc/apt/sources.list.d/medibuntu.list \
http://www.medibuntu.org/sources.list.d/$(lsb_release -cs).list \
&& apt-get --quiet update \
&& apt-get --yes --quiet --allow-unauthenticated install medibuntu-keyring \
&& apt-get --quiet update
2. Enable Ubuntu to play Restricted DVD
root@ubuntu:~# apt-get install --yes libdvdread4
...
root@ubuntu:~# /usr/share/doc/libdvdread4/install-css.sh
After that VLC will be ready to play DVDs for some programs which was compiled without DVD, source rebuilt is required.
If DVDs hang you might need to set a Region Code with regionset:
# regionset
3. Install non-free codecs
root@ubuntu:~# apt-get install non-free-codecs
4. Install Chromium ffmpeg nonfree codecs
root@ubuntu:~# apt-get install chromium
root@ubuntu:~# apt-get install chromium-codecs-ffmpeg-nonfree
5. Install w32codecs / w64codecs
Depending on the Ubuntu Linux installation architecture 32/64 bit install w32codecs or w64codecs
For 32 bit (x86) Ubuntu install w32codecs:
root@ubuntu:~# apt-get install w32codecs
For 64 bit arch Ubuntu:
root@ubuntu:~# apt-get install w64codecs
6. Install ubuntu-restricted-extras meta package
root@ubuntu:~# apt-get install ubuntu-restricted-extras
7. Install cheese for webcam picture/video snapshotting
root@ubuntu:~# apt-get install cheese
8. Install GIMP, Inkscape, xsane,sane, shotwell etc.
root@ubuntu:~# apt-get --yes install sane xsane gimp inkscape gimp-data-extras gimp-plugin-registry \
blender gcolor2 showtwell bluefish kompozer
9. Install multimedia Sound & Video utilities
Install Subtitle editor, video editiking , sound editing, mp3 player, iso mounters, DVD/CD Burners
root@ubuntu:~# apt-get install rhythmbox banshee smplayer mplayer \
realplayer audacity brasero jokosher istanbuk gtk-recordMyDesktop \acetoneisohexedit furiusisomount winff fala audacious dvdstyler lives hydrogen
subtitleeditor gnome-subtitles electricsheep k3b
10. Install CD / DVD RIP tools
root@ubuntu:~# apt-get install acidrip sound-juicer ogmrip thoggen
11. Install chat messanger programs, Browsers, mail pop3 clients, torrent, emulators, ftp clients etc.
apt-get install seamonkey thunderbird transmission transmission-gtk gbgoffice kbedic \
pidgin openoffice.org gxine mozilla-plugin-vlc wine dosbox samba filezilla amsn ntp \epiphany-browser ntpdate desktop-webmail alltray chmsee gftp xchat-gnome ghex \gnome-genius bleachbit arista
12. Install Non-Free Flash Player
Unfortunately Gnash is not yet production ready and crashes in many websites …
root@ubuntu:~# apt-get install flashplugin-nonfree flashplugin-nonfree-extrasound swfdec-gnome
13. Install Archive / Unarchive management programs
root@ubuntu:~# apt-get install unace unrar zip unzip p7zip-full p7zip-rar sharutils rar uudeview \
mpack lha arj cabextract file-roller
15. Install VirtualBox and QEmu
root@ubuntu:~# apt-get install qemu-launcher qemu-kvm-extras virtualbox virtualbox-ose \
virtualbox-ose-guest-dkms virtualbox-ose-guest-dkms
This should be enough to use Ubuntu normally for multimedia Desktop just as MS Windows for most of the daily activities.
Am I missing some important program?
Tags: amp, architecture, audacity, Auto, banshee, bit, blender, bluefish, cd burners, Chromium, Draft, editing, editing mp3, ffmpeg, free codecs, gcolor, inkscape, Install, installation, ISO, libdvdread, Linux, linux multimedia, list, lsb, Medibuntu, meta package, org, output document, package, player, plugin registry, regionset, repository, root, sane, shafter, shotwell, showtwell, smplayer, Sound, sound editing, Sound Video, subtitle editor, sudo, Ubuntu, ubuntu linux, Ubuntu Linux Multimedia, video, video utilities, VirtualBox, VLC, wget, WinFF, x86
Posted in Linux, Linux and FreeBSD Desktop, Linux Audio & Video, System Administration | 5 Comments »
Thursday, October 27th, 2011
The Ubuntu Linux installed previously on Acer ASPIRE 5736Z on my sisters notebook works quite fine. However today she complained about an issue with her sound. The explanation of the problem she faced is:
When she plays a movie file and pauses it and then switches to a music player, suddenly the notebook sound disappears completely until she restarts all the running programs using the sound server. The Acer Aspire is used with a GNOME Desktop, hence my bet was the issues are most probably caused by some kind of mess happening inside Pulseaudio or the way Alsa loaded kernel drivers handles the multiple sound channel streams.
I’m using GNU / Linux for more than 11 years now and I have faced the same sound issues so many times, so when I heard about the problem I thought its pretty normal.
Anyways, what was really irritating in these situation is that when her laptop sound disappears a video or sound files which are to be played by Mozilla Firefox Browser or Chrome are also loosing the sound.
This causes big issues, especially taking in consideration the fact that she had no idea about computers and is a GUI Desktop user, who have no idea how to restart the pulseaudio server to fix the problem etc.
As a good brother, I took the time to check about the issues related to the specific model of Audio Module Hardware / Sound Card, first I checked the exact model of audio the Acer Aspire 5736Z is equipped with:
stanimiraaaa@Ubuntu-Aspire-5736Z:~$ lspci |grep -i audio
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
I checked about any reported other users issues on the net and I found a user somewhere (lost the link), complaining he is experiencing the same sound oddities on his Acer ASPIRE
The fix he suggested is actually quite simple and comes to adding a simple line to /etc/modprobe.d/alsa-base.conf :
stanimiraaaa@Ubuntu-Aspire-5736Z:~$ sudo su -
[sudo] password for stanimiraaaa:
root@Ubuntu-Aspire-5736Z:~# echo 'options snd_hda_intel model=auto' >> /etc/modprobe.d/alsa-base.conf
Next I restartarted to make the new settings take effect. Its also possible to do it without restart, by unloading and loading the alsa module but I’m a lazy kind of person and the machine is notablyunimportant so why should I bother 😉
One important note here is that I removed also an .asoundrc file, that I created some long time ago and this file might have been creating also some sound issues, the content of ~/.asoundrc, before I delete it in her home user, was like so:
stanimiraaaa@Ubuntu-Aspire-5736Z:~$ cat ~/.asoundrc
pcm.!default {
type hw
card 1
device 0
}
ctl.!default {type hw
card 1
device 0
}
stanimiraaaa@Ubuntu-Aspire-5736Z:~$ rm -f .asoundrc
Doing this minor changes to the Ubuntu system erradicated the sound problems and now the sound with simultaneous sound channel streams works just perfect! Thx God 😉
Tags: alsa, asoundrc, audio controller, bet, card, Chrome, consideration, Desktop, desktop user, exact model, explanation, file, firefox browser, Gnome, gnome desktop, gnu linux, hardware sound, hd, instance, intel corporation, kernel drivers, laptop, mess, modprobe, Module, movie file, Mozilla, music player, music streams, notebook, oddities, player, running programs, sound card, sound files, sound server, sudo, time, type, video
Posted in Everyday Life, Linux, Linux Audio & Video, Various | 2 Comments »
Tuesday, June 21st, 2011
I just was recommended by a friend a nifty tool, which is absoutely nifty for system administrators.
The tool is called sshsudo and the project is hosted on http://code.google.com/p/sshsudo/.
Let’s say you’re responsible for 10 servers with the same operating system let’s say; CentOS 4 and you want to install tcpdump and vnstat on all of them without logging one by one to each of the nodes.
This task is really simple with using sshsudo.
A typical use of sshsudo is:
[root@centos root]# sshsudo -u root \
comp1,comp2,comp3,comp4,comp5,comp6,comp7,comp8,comp9,comp10 yum install tcpdump vnstat
Consequently a password prompt will appear on the screen;
Please enter your password:
If all the servers are configured to have the same administrator root password then just typing one the root password will be enough and the command will get issued on all the servers.
The program can also be used to run a custom admin script by automatically populating the script (upload the script), to all the servers and issuing it next on.
One typical use to run a custom bash shell script on ten servers would be:
[root@centos root]# sshsudo -r -u root \
comp1,comp2,comp3,comp4,comp5,comp6,comp7,comp8,comp9,comp10 /pathtoscript/script.sh
I’m glad I found this handy tool 😉
Tags: admin script, Auto, bash shell script, CentOS, command, comp, comp3, comp6, custom, Draft, google, handy tool, nifty tool, operating system, password, project, root, Runing, screen, script, script upload, servers, Shell, SSHSUDO, sudo, system administrators, task, tcpdump, tool, upload, use, vnstat, yum
Posted in System Administration | 1 Comment »
Monday, April 11th, 2011
If you’re experiencing problems with maximising flash (let’s say youtube) videos on your Debian or Ubuntu or any other debian derivative.
You’re not the only one! I myself has often experienced the same annoying issue.
The flash fullscreen failures or slownesses are caused by flash player’s attempts to use directly your machine hardware, as Linux kernel is rather different than Windows and the guys from Macromedia are creating always a way more buggy port of flash for unix than it’s windows versions, it’s quite normal that the flash player is unable to properly address the computer hardware on Linux.
As i’m not programmer and I couldn’t exactly explain the cause for the fullscreen flash player mishaps, I’ll skip this and right give you the two command lines solution:
debian:~# mkdir /etc/adobe
debian:~# echo "OverrideGPUValidation = 1" >> /etc/adobe/mms.cfg
This should fix it for, you now just restart your Icedove (Firefox), Epiphany Opera or whatever browser you’re used to and launch some random video in youtube to test the solution, hopefully it should be okay 😉 But you never know with flash let’s just hope that very soon the open flash alternative gnash will be production ready and at last we the free software users will be freed from the evil “slavery” of adobe’s non-free flash player!
Though this tip is tested on Debian based Linux distributions it should most likely work same in all kind of other Linuxes.
The tip should also probably have effect in FreeBSD, though the location of the adobe directory and mms.cfg should probably be /usr/local/etc/adobe, I’ll be glad to hear from some FreeBSD user if including the OverrideGPUValidation = 1 flash option to mms.cfg like below:
# mkdir /usr/local/etc/adobe
# echo "OverrideGPUValidation = 1" >> /usr/local/etc/adobe/mms.cfg
would have an impact on any flash player fullscreen issues on FreeBSD and other BSD direvative OSes that run the linux-flash port.
Tags: Adobe, adobe flash, adobedebian, browser, BSD, buggy, cause, cfg, command, Computer, computer hardware, derivative, Flash, flash fullscreen, flash issues, flash option, free flash player, free software users, freebsd user, fullscreen flash, gnash, hardware, Icedove, impact, issue, kernel, linux distributions, linux flash, linuxes, location, machine hardware, macromedia, mms, option, oses, player, port, production, programmer, Resolving, right, slavery, software, solution, sudo, tip, Ubuntu, video, way, windows versions, work, youtube, youtube videos
Posted in Linux, Linux and FreeBSD Desktop, Linux Audio & Video | No Comments »
