Articles

Writings of mine on various domains of computer science.

Linux

Installing and upgrading Linux on a EeePC easily and safely
CERN Scientific Linux, a nice RHEL derivative
How to install a Squid webproxy
How to increase a laptop's hard disk size and its encrypted LUKS /home partition
How to install RHEL packages and all their dependencies on an offline machine

Databases

Updating ClusterControl, a nice application to manage database clusters
Updating Percona XtraDB Cluster from v5.5 to v5.6
Changing passwords in ClusterControl
Troubleshooting a ClusterControl Percona XtraDB Cluster: part 1
Troubleshooting a ClusterControl Percona XtraDB Cluster: part 2
Monitoring MySQL master-slave replication with Munin
Interpreting Munin graphs when monitoring your database cluster
Running a Percona XtraDB Cluster on RHEL 7

Web

Email munging to protect an email address from spambots
A bookmarks page from 1990s' World Wide Web

Programming

A PowerShell script for advanced log scanning, written as a plugin for Nagios

Other stuff

The Snake Oil Index
On Open Source and Security
On Open Source and Sustainability