Clustering: Don’t turn the Rocks firewall off unless you know what you’re doing…

Recently Professor Diana Franklin was awarded an NSF grant to build a small high performance computing cluster here on campus. As the “friendly neighborhood system administrator” I volunteered to help build and run it. We chose UCSD’s Rocks Linux based clustering software for it. Rocks …

Monitor your stuff: Nagios

Nagios is a system monitoring tool that runs on Unix/Linux platforms, but will monitor practically anything – Unix, Windows, databases, environmental/HVAC, you name it. Nagios is good, and works well – but it isn’t easy to configure.