Interoperability

If you're like me and you've developed a CDN distribution for your website's content (while waiting for SPDY to be widely adopted and available in mainstream distributions), you might have noted that the Googlebot is frequently scanning your CDNs, and this might have made your website a bit overloaded. After all, the goal of the CDNs are (several but in my case only) to elegantly distribute contents across subdomains so your browser will load the page resources faster (otherwise it gets blocked by the HTTP limit or any higher limit set by your browser of simultaneous content download). Hell,

A lot of people have been asking for a database schema of Chamilo 1.9. Here it is. The editable format can be found in the documents for Chamilo LMS: http://support.chamilo.org/documents/57 [caption id="attachment_3487" align="aligncenter" width="466"]

If you need to know what your website looks like in a browser that you don't have available (for ethical, financial or other reasons), you can test you website (if public) using http://browsershots.org/ It's a nice service (although a bit limited) for free, and you can get extensions for a reasonnable  fee.  

This must appear in one opportunity in 1000, but it happened to me, so I bet it might have just happened to you... Munin is great, Nginx is great, and SSL is great, but when you mix all of them together, you might get some frustrating behaviour. If you don't know it already, you can test the results of a Munin plugin on Debian-based systems with the command

sudo munin-run [plugin]

For example, if your nginx_status graph in the Munin web interface is empty, you can try

sudo munin-run nginx_status

The name of the plugin will auto-complete with the TAB key, with any plugin

My work and readings have lead me through a lot of things related to the simultaneity of connections from a browser (client) to a web server and the HTTP context in which all that happens.

I'm always surprised at how large companies are taking their IT politics too easily, and then are surprised by what happens. Today, Josh Bersin (of Bersin & Associates, a great guy to follow: @Josh_Bersin) published an article on the plans by SAP to buy SuccessFactors (probably the leader in employees performance management software, at least in terms of completeness), and the fact that some customer of Su

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" mode, so without graphical interface.

There's a short but great article about setting up PHPEclipse with Xdebug here: http://bogdan-albei.blogspot.com/2010/06/php-remote-debugging-with-xdebug-and.html I really don't want to forget this one!

We've had a lot of teachers ask us for streaming capabilities and, over time, we've grown tired of setting up videoconference servers for a few bucks a month because teachers just can't afford the budget. While there are many tools around to do video streaming or classroom conferences, most of the operations to set them up seem to be a pain in the neck for most people desperately wanting to benefit from these features, and while Chamilo is preparing its first tests with BigBlueButton as a free, open-source videoconference classroom environment, this might still take a while to come out so I t

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.