Category Archives: System Administration

Brasero Disk Burner Gets Stuck Creating Image Checksum

Posted on April 26, 2012 by daniel

When I was trying to burn a new copy of the latest version of Ubuntu, Brasero was getting stuck on the “Creating Image Checksum”. My first thought was to disable the check-sum feature (which you can do via the edit … Continue reading →

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Ubuntu 12.04 Released!

Posted on April 26, 2012 by daniel

Woot! Today Ubuntu 12.04 will be available for download. I am quite excited about a number of new features, most significantly HUD (Heads Up Display). This is an innovative system for interacting with menus via the keyboard with search. Not … Continue reading →

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javascript-common & mantis 404 problem on Ubuntu

Posted on April 11, 2012 by daniel

Although my mantis install seemed to be working, I noticed that whenever I loaded the page, I recieved a number of 404 errors on the javascripts. ( 404 – /javascript/min/common.js). What really confused me is that the file was in … Continue reading →

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Apache /icons directory Index

Posted on March 5, 2012 by daniel

Generally I like to add Options -Indexes to my apache config files. Naturally I was surprised to find that www.mydomain.com/icons/ was returning a standard apache index. I checked my config files and all the files remove the Index options, so … Continue reading →

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Linux test network connection

Posted on January 19, 2012 by daniel

Lately I have begun to suspect on of my servers is losing its network connection under certain circumstances. Naturally I started with basic connectivity test such as ping: However, I also wanted to put it under a little strain so … Continue reading →

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Symfony Project Returns Apache 404

Posted on October 17, 2011 by daniel

When copying a Symfony Project to a new server I noticed a problem; when I used the dev environment, everything worked fine, but when I used prod, I received a 404. They key was that the 404 came from apache … Continue reading →

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Execute a PHP 5 Script From the Command Line in Ubuntu Linux

Posted on September 26, 2011 by donaldvr

To execute a PHP script from the command line in Ubuntu you must have php5-cli installed. (CLI stands for “Command Line Interface”.) sudo apt-get install php5-cli Once cli is installed, you can execute your script like so: php5 ./myScript.php Inside … Continue reading →

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PHP Sessions: Can’t open directory error

Posted on August 30, 2011 by daniel

When working on an Ubuntu webserver, I have noticed the following error appearing at the top of my pages every so often: Notice: session_start(): ps_files_cleanup_dir: opendir(/var/lib/php5) failed: Permission denied (13) Apparently this a “bug” in Ubuntu: https://bugs.launchpad.net/ubuntu/+source/php5/+bug/619855 For the reasons … Continue reading →

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Bash: Saving output from commands

Posted on August 9, 2011 by daniel

Often I want a bash script to run a command and then save the output of the command to a variable. For example, lets say I want to a file for a version number and then check in my script … Continue reading →

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Linux Bash Scripts: colored text

Posted on August 6, 2011 by daniel

Often I have wondered how scripts like grep output colored text to the terminal. It turns out it is fairly easy. The following code will output red text (depending on profile settings) to the terminal from a bash script: $(tput … Continue reading →

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