For those developers of you wanting to do more than just develop under Linux, you’ll have realized that there are many things stopping you for doing proper video tutorials as easily as you would do it with some non-free (as in freedom) software. Fear not, though, as this tutorial, written at a time between Ubuntu […]
This article is an extension of the previous article about storing sessions in Memcached with PHP. Using Memcached for sessions storage is generally a matter of speed (storing them in memory is faster than on disk) and of scalability (using a Memcached server allows you to have several web servers serving the same PHP application […]
If you’re in a hurry/on speed, know this: this procedure is slightly more difficult (so longer) than installing the charm on Amazon you can skip directly to “Installing Juju” if you already have juju installed, you can skip to the last 2 lines of the “Installing juju” section if you already have juju-docean installed and […]
Just a (great) reference: http://vimregex.com/ Read it = love it!
Munin 2.0 has been released and packaged for Debian, and even backported to Squeeze (from backports.debian.org). Even though there are still some quirks in this version (or just the Debian packaging), it is far better (more scalable, more powerful and prettier) than version 1.4. Basically, the following article should cover it all: http://munin-monitoring.org/wiki/CgiHowto2, but doesn’t […]
Today we had a server stalled on “Loading kernel modules” at reboot (after adding 12GB of RAM, to 24GB total). The datacenter didn’t know what to do and they put us on a 32-bit rescue mode console from which we couldn’t (obviously) launch a 64bit chroot to update the kernel. The situation seemed pretty desperate. […]
Due to a licensing issue, the PHP bindings for Xapian were removed from Debian Squeeze. See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=513796 for more information about this. Though, it is not really hard to build your own package from source. Here is how: sudo apt-get build-dep xapian-bindings sudo apt-get install php5-dev php5-cli apt-get source xapian-bindings cd xapian-bindings-1.2.* rm debian/control env […]
Many new videoconference systems nowadays are Flash-based. Of course, the main input for them is some sort of video device (e.g. a webcam). Under Linux, the framework responsible for this is Video4Linux (V4L), of which version 2 (aka V4L2) is current. That means that most recent webcams drivers are supported only by V4L2. Alas, some […]
The documentation to install BigBlueButton 0.64 on CentOS (and on most other distributions) is really excellent. However, I found that CentOS 5.5 had not been documented yet, so I tried it and run into a few problems. I explain below how to get it all sorted out. I installed CentOS5.5 from a DVD in “server” […]
BeezNest is the proud provider of the hardware and systems architecture running the main server for Mantis, the missing link between multi-species full genome comparisons and functional analysis. In February 2008, Raphaël Helaers, main developer of Mantis, working at the Université Libre de Bruxelles, and fellow student in my computer sciences studies, asked us if […]
After Ubuntu’s decision to default to OpenJDK for 10.04 (which is a good decision, IMHO), Sun’s (but is it still Sun, or Oracle?) JAVA somewhat “disappeared” from Ubuntu (multiverse). That being said, some people may still need features only available in Sun’s JRE/JDK, which might not yet have been Freed. Actually, Ubuntu is still shipping […]
Today I just saw one of the most beautiful examples of what our efforts (as a community of free software, standards, formats and knowledge evangelists) are all leading to. In short, I’m talking about the Wikipedia page in English for the OGG standard, which I’m publishing a capture of below. “So, what’s so special?” you […]
Recent comments