Posts Tagged ‘tar archive’

Check your Server Download / Upload Internet Speed from Console on Linux / BSD / Unix howto

Tuesday, March 17th, 2015

tux-check-internet-network-download-upload-speed-on-linux-console-terminal-linux-bsd-unix
If you've been given a new dedicated server from a New Dedicated-Server-Provider or VPS with Linux and you were told that a certain download speed to the Server is guaranteed from the server provider, in order to be sure the server's connection to the Internet told by service provider is correct it is useful to run a simple measurement console test after logging in remotely to the server via SSH.

Testing connection from Terminal is useful because as you probably know most of Linux / UNIX servers doesn't have a GUI interface and thus it is not possible to test Internet Up / Down Bandwidth through speedtest.net.
 

1. Testing Download Internet Speed given by ISP / Dedi-Server Provider from Linux Console

For the download speed (internet) test the historical approach was to just try downloading the Linux kernel source code from www.kernel.org with some text browser such as lynx or links count the seconds for which the download is completed and then multiple the kernel source archive size on the seconds to get an approximate bandwidth per second, however as nowdays internet connection speeds are much higher, thus it is better to try to download some Linux distribution iso file, you can still use kernel tar archive but it completed too fast to give you some good (adequate) statistics on Download bandwidth.

If its a fresh installed Linux server probably you will probably not have links / elinks and lynx text internet browers  installed so install them depending on deb / rpm distro with:

If on Deb Linuz distro:

 

root@pcfreak:/root# apt-get install –yes links elinks lynx

 

On RPM Based Linuz distro:
 

 

[root@fedora ~]# yum install -y lynx elinks links

 

Conduct Internet  Download Speed with links
root@pcfreak:/root# links https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.19.1.tar.xz

check_your_download_speed-from-console-linux-with-links-text-browser

(Note that the kernel link is current latest stable Kernel source code archive in future that might change, so try with latest archive.)

You can also use non-interactive tool such as wget curl or lftp to measure internet download speed

To test Download Internet Speed with wget without saving anything to disk set output to go to /dev/null 

 

root@pcfreak:~# wget -O /dev/null http://pc-freak.net/~hipo/hirens-bootcd/HirensBootCD15/Hirens.BootCD.15.0.zip

 

check_bandwidth_download-internet-speed-with-wget-from-console-non-interactively-on-linux

You see the Download speed is 104 Mbit/s this is so because I'm conducting the download from my local 100Mbit network.

For the test you can use my mirrored version of Hirens BootCD

2. Testing Uplink Internet speed provided by ISP / Server Provider from Linux (SSH) Console

To test your uplink speed you will need lftp or iperf command tool.

 

root@pcfreak:~# apt-cache show lftp|grep -i descr -A 12
Description: Sophisticated command-line FTP/HTTP client programs
 Lftp is a file retrieving tool that supports FTP, HTTP, FISH, SFTP, HTTPS
 and FTPS protocols under both IPv4 and IPv6. Lftp has an amazing set of
 features, while preserving its interface as simple and easy as possible.
 .
 The main two advantages over other ftp clients are reliability and ability
 to perform tasks in background. It will reconnect and reget the file being
 transferred if the connection broke. You can start a transfer in background
 and continue browsing on the ftp site. It does this all in one process. When
 you have started background jobs and feel you are done, you can just exit
 lftp and it automatically moves to nohup mode and completes the transfers.
 It has also such nice features as reput and mirror. It can also download a
 file as soon as possible by using several connections at the same time.

 

root@pcfreak:/root# apt-cache show iperf|grep -i desc -A 2
Description: Internet Protocol bandwidth measuring tool
 Iperf is a modern alternative for measuring TCP and UDP bandwidth performance,
 allowing the tuning of various parameters and characteristics.

 

To test Upload Speed to Internet connect remotely and upload any FTP file:

 

root@pcfreak:/root# lftp -u hipo pc-freak.net -e 'put Hirens.BootCD.15.0.zip; bye'

 

uploading-file-with-lftp-screenshot-test-upload-internet-speed-linux

On Debian Linux to install iperf:

 

root@pcfreak:/root# apt-get install –yes iperf

 

On latest CentOS 7 and Fedora (and other RPM based) Linux, you will need to add RPMForge repository and install with yum

 

[root@centos ~]# rpm -ivh  rpmforge-release-0.5.3-1.el7.rf.x86_64.rpm

[root@centos ~]# yum -y install iperf

 

Once having iperf on the server the easiest way currently to test it is to use
serverius.net speedtest server –  located at the Serverius datacenters, AS50673 and is running on a 10GE connection with 5GB cap.

 

root@pcfreak:/root# iperf -c speedtest.serverius.net -P 10
————————————————————
Client connecting to speedtest.serverius.net, TCP port 5001
TCP window size: 16.0 KByte (default)
————————————————————
[ 12] local 83.228.93.76 port 54258 connected with 178.21.16.76 port 5001
[  7] local 83.228.93.76 port 54252 connected with 178.21.16.76 port 5001
[  5] local 83.228.93.76 port 54253 connected with 178.21.16.76 port 5001
[  9] local 83.228.93.76 port 54251 connected with 178.21.16.76 port 5001
[  3] local 83.228.93.76 port 54249 connected with 178.21.16.76 port 5001
[  4] local 83.228.93.76 port 54250 connected with 178.21.16.76 port 5001
[ 10] local 83.228.93.76 port 54254 connected with 178.21.16.76 port 5001
[ 11] local 83.228.93.76 port 54255 connected with 178.21.16.76 port 5001
[  6] local 83.228.93.76 port 54256 connected with 178.21.16.76 port 5001
[  8] local 83.228.93.76 port 54257 connected with 178.21.16.76 port 5001
[ ID] Interval       Transfer     Bandwidth
[  9]  0.0-10.2 sec  4.05 MBytes  3.33 Mbits/sec
[ 10]  0.0-10.2 sec  3.39 MBytes  2.78 Mbits/sec
[ 11]  0.0-10.3 sec  3.75 MBytes  3.06 Mbits/sec
[  4]  0.0-10.3 sec  3.43 MBytes  2.78 Mbits/sec
[ 12]  0.0-10.3 sec  3.92 MBytes  3.18 Mbits/sec
[  3]  0.0-10.4 sec  4.45 MBytes  3.58 Mbits/sec
[  5]  0.0-10.5 sec  4.06 MBytes  3.24 Mbits/sec
[  6]  0.0-10.5 sec  4.30 MBytes  3.42 Mbits/sec
[  8]  0.0-10.8 sec  3.92 MBytes  3.03 Mbits/sec
[  7]  0.0-10.9 sec  4.03 MBytes  3.11 Mbits/sec
[SUM]  0.0-10.9 sec  39.3 MBytes  30.3 Mbits/sec

 

You see currently my home machine has an Uplink of 30.3 Mbit/s per second, that's pretty nice since I've ordered a 100Mbits from my ISP (Unguaranteed Bandwidth Connection Speed) and as you might know it is a standard practice for many Internet Proviers to give Uplink speed of 1/4 from the ISP provided overall bandwidth 1/4 would be 25Mbi/s, meaning my ISP (Bergon.NET) is doing pretty well providing me with even more than promised (ordered) bandwidth.

Iperf is probably the choice of most sysadmins who have to do regular bandwidth in local networks speed between 2 servers or test  Internet Bandwidth speed on heterogenous network with Linux / BSDs / AIX / HP-UX (UNIXes). On HP-UX and AIX and other UNIXes for which iperf doesn't have port you have to compile it yourself.

If you don't have root /admin permissions on server and there is python language enterpreter installed you can use speedtest_cli.py script to test internet throughput connectivity
speedtest_cli uses speedtest.net to test server up / down link just in case if script is lost in future I've made ownload mirror of speedtest_cli.py is here

Quickest way to test net speed with speedtest_cli.py:

 

$ lynx -dump https://raw.github.com/sivel/speedtest-cli/master/speedtest_cli.py > speedtest_cli.py
$ chmod +x speedtest_cli.py
python speedtest_cli.py

speedtest_cli_pyhon_script_screenshot-on-gnu-linux-test-internet-network-speed-on-unix

Run native Internet Explorer 6 on latest Debian / Ubuntu Linux with IEs4Linux

Thursday, July 24th, 2014

Install-internet-explorer-on-debian-linux-IEs4Linux_logo.svg
If you're a GNU / Linux Desktop user like me and you have to administrate hybrid server environments running mixture of MS Windows with Microsoft IIS webserver running active server pages (.ASP) developed application or UNIX / GNU Linux servers web applications using Mono as a server-side language, often you need to have browser which properly supports  Internet Explorer Trident web (layout) renderer (also famous as MSHTML).

Having Internet Explorer on your Linux is very useful for web developers who want to test how their website works under IE.

Of course you can always install Windows in Virtualbox VM and do your testing in the Virtual Machine but this takes time to install and also puts a useless load to a PC ….

IES4 Linux is a Linux free (open source) shell script that lets you run Internet Explorer on your Linux desktop.

ies4linux scripts collection uses emulation with WINE (Wine is Not Emulator) emulator to run the native  Windows Internet Explorer thus before use it you have to install Wine.

There are plenty of tutorials online about ies4Linux, problem is as it is not updated and developed most tutorials doesn't work on Debian Wheezy / Ubuntu and rest of deb based linux distros.
This is why I decided to write just another ies4linux tutorial that actually works!

On Debian / Ubuntu / Mint Linux install via apt-get:

apt-get –yes install wine

Then with a non-root user download ies4linux-latest.tar.gz. Just in case ies4linux-latest.tar.gz disappears in future I've created also a ies4linux-latest.tar.gz mirror for download here

and unarchive tar archive:

wget http://www.tatanka.com.br/ies4linux/downloads/ies4linux-latest.tar.gz
tar -zxvf ies4linux-latest.tar.gz
cd ies4linux-*
./ies4linux

You will get:
 

IEs4Linux 2 is developed to be used with recent Wine versions (0.9.x). It seems that you are using an old version. It's recommended that you update your wine to the latest version (Go to: winehq.com).

You need to install cabextract first!
Download it here: http://www.kyz.uklinux.net/cabextract.php

To fulfill this requirement you will need to also cabetract package which is luckily part of Debian:
 

apt-get install –yes cabextract

On wine version 1.0 and onwards winprefixcreate has been changed to winecfg binary.
To prevent missing wineprefixcreate, errors during ies4linux installer run  its necessery to symlink as a workaround:
 

ln -sv /usr/bin/winecfg /usr/bin/wineprefixcreate


To continue with Internet Explorer ies4Linux installater run again:

./ies4linux

images/internet-explorer-for-linux-debian-gnu-linux-screenshot

/images/internet-explorer-4-linux-installer-debian-gnu-linu-screenshot

You will get the installer GUI window with selection option which Internet Explorer version you want. Choose between IE 5.0, IE 5.5 and IE 6. It is also possible to install IE 7 which is still considered beta version and is less tested and unstable, will probably lead to crashes. If you want to install also IE 7 check it as an option from Advanced menu.

/images/ies4linux-internet-explorer-installer-debian-gnu-linux-screenshot

If you get permission errors after running ies4Linux gui installer to solve that chown recursively directory to the user with which you will be running it:
 

chown -R hipo:hipo ies4linux-2.99.0.1

 

Internet Explorer for Linux downloader, will connect Microsoft.com website and download DCOM, MCF and various IE required .CAB files.

If you get some ies4linux GUI installer unexpected crashes you can try to download all required IE binaries, surrounding files and flash player using no-gui installer with cmd:
 

./ies4linux –no-gui –install-corefonts

IEs4Linux 2 is developed to be used with recent Wine versions (0.9.x). It seems that you are using an old version. It's recommended that you update your wine to the latest version (Go to: winehq.com).

IEs4Linux will:
  – Install Internet Explorers: 6.0
  – Using IE locale: EN-US
  – Install Adobe Flash 9.0
  – Install MS Core Fonts
  – Install everything at: /home/hipo/.ies4linux
[ OK ]

Downloading everything we need
  Downloading from microsoft.com:
   DCOM98.EXE
   mfc42.cab
   249973USA8.exe
   ADVAUTH.CAB
   CRLUPD.CAB
   HHUPD.CAB
   IEDOM.CAB
   IE_EXTRA.CAB
   IE_S1.CAB
   IE_S2.CAB
   IE_S5.CAB
   IE_S4.CAB
   IE_S3.CAB
   IE_S6.CAB
   SETUPW95.CAB
   FONTCORE.CAB
   FONTSUP.CAB
   VGX.CAB
   SCR56EN.CAB

  Downloading from macromedia.com:
   100% swflash.cab

  Downloading from sourceforge.net
   0%   webdin32.exe[ OK ]bdin32.exe

Installing IE 6
  Initializing
  Creating Wine Prefix
Your wine does not have wineprefixcreate installed. Maybe you are running an old Wine version. Try to update it to the latest version.

To fix the error:

Your wine does not have wineprefixcreate installed. Maybe you are running an old Wine version. Try to update it to the latest version.

vim lib/functiions.sh

Go to line 36 (Type :36 in vim)

Line:

wine –version 2>&1 | grep -q "0.9." || warning $MSG_WARNING_OLDWINE

Has to be changed to:

wine –version 2>&1 | egrep -q "0.9.|-1." || warning $MSG_WARNING_OLDWINE


Also you need to substitute wineprefixcreate to wineboot (if you haven't already symlinked wineprefixcreate to winecfg – as pointed earlier in article.

To do so make following substitution in lib/install.sh and in lib/functions.sh

cp -rpf lib/install.sh lib/install.sh.bak; cat lib/install.sh |sed -e 's#wineprefixcreate#wineboot#g' > lib/install_new.sh; mv lib/install_new.sh lib/install.sh

cp -rpf lib/install.sh lib/functions.sh.bak; cat lib/functions.sh |sed -e 's#wineprefixcreate#wineboot#g' > lib/functions_new.sh; mv lib/functions_new.sh lib/functions.sh


Also it is necessery to change default corefonts download url which points to sourceforge but is failing. I've made mirror of corefonts files here
 

cp -rpf lib/install.sh lib/install.sh.bak; cat lib/install.sh |sed -e 's#http://internap.dl.sourceforge.net/sourceforge/corefonts/#www.pc-freak.net/files/corefonts/#g' > lib/install_new.sh; mv lib/install_new.sh lib/install.sh

Re-run the ies4linux console installer:
 

 ./ies4linux –no-gui –install-corefonts

….
Es4Linux installations finished!

On installation success you should get output like this
Hopefully you will see no errors like in my case, if you get the corefonts download error again re-run the installer and it should succesully download the files.

To then run ies4linux:

~/bin/ie6


internet-explorer-ies4linx-running-on-debian-gnu-linux-screenshot
Though Ies 4 Linux is good for basic testing it is not psosible to use the browser for normal browsing because its a bit buggy and slow.

By default Internet Explorer 6 behavior is to prompt security alert on various actions, though this might be useful for debugging it is really annoying so I personally disabled those by decreasing from:

Tools -> Internet Options -> Security -> (Security Level)
I've decreased it from Medium to Medium-Low

ies4Linux was not developed since 2008 and as of time of writting ies4linux official project website seems abandoned.

 

How to make screenshots on Slackware Linux with XFCE graphical environment

Thursday, February 23rd, 2012

1. Install the slackware binary package xfce4-screenshooter.

For the latest Slackware Linux release which as of time of writting is 13.37 xfce4-screenshooter-1.7.9-i486-3sl.txz can be download from here

Install of xfce4-screenshooter-1.7.9-i486-3sl.txz is done with slackware's usual installpkg package manager command:

bash-4.1# /sbin/installpkg xfce4-screenshooter-1.7.9-i486-3sl.txz

By the way, I haven't used slackware for a long time so in the mean time since Slackware 13, the default slackware packages format .tgz is now substituted with the newer .txz (better compressed .txz). The old .tgz was simply a tar archive with DEFLATE gzip. The newer .txz packages bundled with newer slackware releases are using the LZMA2 (XZ) chain algorithm for compression. LZMA implies higher compression than even bzip2 and this is the reason why Patrick Volkerding – the one man army man behind Slackware decided to use it.
The reason Vollerding choose using .txz is slackware network distribution will load up less the networks and will take less time for downloading extra slackware packages via the internet. The .txz also reduces slackware main CD size so more packages can be contained in the same 700MB sized slack install CD.

Anyways now back to the installation of xfce-screenshooter.

Once installed to runit use the Xfce menus:

Xfce Menu -> Accesories -> Screenshot

Next you will see the xfce-screenshooter program to pop-up:

To take a snapshot of the screen use:

Entire Screen -> Save

XFCE screenshooter Slackware Linux take a screenshot dialog

XFCE screenshooter Slackware Linux action Save