Tom Ryder is a systems administrator and former web developer from New Zealand. He uses Nagios Core as part of his "day job" as a systems administrator, monitoring the network for a regional Internet service provider. Tom works a great deal with Unix-like systems, being a particular fan of GNU/Linux, and writes about usage of open source, command-line development tools on his blog, Arabesque, at http://blog.sanctum.geek.nz.