This is an article of mine first published on Openlogic/Wazi
With Nagios, the leading open source infrastructure monitoring application, you can monitor your whole enterprise by using a distributed monitoring scheme in which local slave instances of Nagios perform monitoring tasks and report the results back to a single master. You manage all configuration, notification, and reporting from the master, while the slaves do all the work.
This design takes advantage of Nagios’s ability to utilize passive checks – that is, external applications or processes that send results back to Nagios. In a distributed configuration, these external applications are other instances of Nagios.

Back from vacation? now you’ll have probably a lot of photos and video to show to friends on facebook, but loading them by hand from the web interface is not exactly the easiest thing to do.
Star Gazing has always been an authentic hobby of many people around the globe and it is indeed one of the oldest hobbies known to man. We all must love gazing stars at night, most of them don’t make it as their hobby, but many of us still try hard to look out for the constellation, or even spot out a planet or a galaxy, and for amateur’s like me it is even difficult to spot a planet in the night sky.