These are my links for 23 feb 2011 through 28 feb 2011:

• Openfiler 2.3 Active/Passive Cluster (heartbeat,DRBD) With … – […] Openfiler is a Linux based NAS/SAN application which can deliver storage over nfs/smb/iscsi and ftp. It has a web interface over that you can control these services. The howto is based on the Howto from Kyle Gililland. A lot of thanks to him for this.<br />
  The cluster we build will consist of two nodes replicating each other and taking over services and storage in case of emergency. Furthermore we have an Offsite Replication Server, which ideally stands in a physically different position and replicates the configurations/storage from which ever node is active. In case of emergency this Offsite Replication Server can be used to restore the cluster and to deliver the services […]
• Using m4 with Nagios: Advanced Ideas – Nagios configuration has been traditionally cumbersome and extensive; there are a lot of things to configure. The addition of templating some time ago helped, but not entirely. A configuration element such as a server or a switch can take up a huge amount of configuration and be quite repetitive, too.Using m4 can alleviate all of these problems. When combined with GNU Make and Nagios configuration directories, changing the configuration can be done quite simply and easily.
• Random.org – RANDOM.ORG offers true random numbers to anyone on the Internet. The randomness comes from atmospheric noise, which for many purposes is better than the pseudo-random number algorithms typically used in computer programs. People use RANDOM.ORG for holding drawings, lotteries and sweepstakes, to drive games and gambling sites, for scientific applications and for art and music. The service has existed since 1998 and was built and is being operated by Mads Haahr of the School of Computer Science and Statistics at Trinity College, Dublin in Ireland.<br />
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  [ via http://schiseta.com ]