Category Archives: System Administration

Configure CUPS with CFEngine 3

I use CFEngine3 to manage several Ubuntu computers. One task I wanted to do the other day was centrally manage printers. That way, when I setup a new computer, I don’t have to worry about setting up printers. Thankfully, cups … Continue reading

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Easy Understandable Way to Remove Old Kernels

I have several servers where old kernels become a problem.  Generally either /usr or /boot fills up or runs out of in-nodes.  There are a couple of how-tos that give you a command line one-liner that will fix the problem; … Continue reading

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Installing Simple LDAP in WordPress “undefined function ladp_connect()”

When trying to install a wordpress site with the LDAP simple plugin (on Ubuntu Server), I got a blank page for the login page and found the following error in my /var/log/apache2/error.log: PHP Fatal error: Call to undefined function ldap_connect() … Continue reading

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CFEngine3 Allow Clients Access to File on Server

The other day I was trying to copy a file from a CFEngine hub to a client machine. My test bundle was as follows: However, I kept getting an error about “Could not stat file”. When I ran the file … Continue reading

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Error Installing CFEngine 3 on Ubuntu 12.04

I was trying to install CFEngine3 using the following commands: However, I got the following error: Failed to fetch http://cfengine.com/pub/apt/dists/precise/Release Unable to find expected entry ‘main/source/Sources’ in Release file (Wrong sources.list entry or malformed file) E: Some index files failed … Continue reading

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Brasero Disk Burner Gets Stuck Creating Image Checksum

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!

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

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

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

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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