Documentation

This article is co-authored by Jérôme Warnier, from work mostly done by him with my occasional support. Kudos go to him. We couldn't find any valuable manual to install Redmine 2.1 on Debian Squeeze, and we sure met a lot of resistance along the way, so we came up with the following step-by-step guide...

Sources of inspiration

We used the following resources as a starting point.

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

The written proceedings of the 2011's International Conference on e-Learning in Serbia caught my eye with an article called "HYBRID MODEL FOR E-LEARNING QUALITY EVALUATION" by Suzana Savić, Miomir Stanković and Goran Janaćković, not actually for the hybrid model (although it has its merits), but mainly for listing projects analysing different aspects of e-learning quality (resulting in evaluation models) actually available right now, which I want to list here for later reference:

• Supporting Excellence in E-L

Tagalog is the national language of Philippines and, although it's now written mainly in latin fonts (as Wikipedia reports), it can also be found written using the Baybayin script.Well, somehow, it seems difficult to find any relevant information on how to display Baybayin fonts in your browser in Ubuntu.

A really good guide on branching is available here: http://stevelosh.com/blog/2009/08/a-guide-to-branching-in-mercurial/ In my case, I wanted to branch a previous version of my code to launch a parallel branch for bug-fixing of the previous release. I used the Chamilo code repository on google code.

If you've been into website development, and in particular website optimization, you probably have stumbled upon that question at least once: what HTTP headers do the different browsers send when the user presses F5 or (even better) CTRL+F5, to make the web server bypass the cache system? Well, the user "some" on Stackoverflow answered that in a very complete way here: http://stackoverflow.com/questions/385367/wha

This is the life-saver cheatsheet you need if you're ever going to want to understand complex rewrite rules like the ones generated by the Boost module in Drupal: http://www.askapache.com/htaccess/mod_rewrite-variables-cheatsheet.html In particular, in  RewriteRule .* - [S=5], the [S=5] rule means "skip the next 5 lines". It can represent a considerable efficiency boost!

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.

Let's say you got confused by a misleading fake-RAID feature on an HP Blade server and you decided to ignore that the Ubuntu installer was telling you it found 2 disks while it was supposed (if it was actual hardware RAID) to be detecting only one. And let's say you are lucky to have 3 disks, and you only one to use two as the RAID array (and they do not contain your operating system, i.e. the / partition). You might wonder: "And now what? S**** you, HP!" (that last bit is if you left panic get you, of course).