Ethan Galstad is the creator and lead developer of Nagios. Since its
first release in 1999 under the name NetSaint, Nagios has attracted
numerous developers and a large following of users that have helped make
it successful.  

His presentation on Nagios will include an overview of how it performs
its monitoring functions, integrating Nagios with third-party
applications and expanding its functionality using the new even broker
API, and future planned enhancements.  

We will meet at the RenBox in Saint Paul, Minnesota. this Saturday April
9th from Noon to 3:30PM.  Details at http://tcbug.org.

Dan