My Thesis…

For all of you who wanted to take a look to my thesis (Design of a model to implement High Availability Web Servers, an overview here)… you can donwload it from here: https://roaksoax.files.wordpress.com/2009/03/thesis.pdf

Btw… it is in Spanish. šŸ™‚

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Cluster Sinchronization Tool (CSync2)

As you may know, there are many tools for file synchronization between servers that can suit your needs, but Csync2 (Website and Paper) was specially designed for Cluster File Synchronization, which makes it a great tool to synchronize config files and folders.

Now, I’ll show you a simple way of configuring it, by having a master server (where we can make changes to the config files) and one or multiple slave servers, where the files will be synchronized. First of all, we have to install it along with other packages:

:~# sudo apt-get install csync2 sqlite3 openssl xinetd

After having everything installed, we have to create the certificates that will allow Csync2 authenticate between servers so that the files can be synchronized. To do that we do this:

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