Nagios

Nagios: System and Network Monitoring shows how to configureand use Nagios, an open source system and network monitoringtool. Nagios makes it possible to continuously monitornetwork services (SMTP, POP3, HTTP, NNTP, PING, etc.), hostresources (processor load, disk and memory usage, runningprocesses, log files, etc.), and environmental factors (suchas temperature). When Nagios detects a problem, itcommunicates the information to the sys admin via email,pager, SMS, or other user-defined method; current statusinformation, historical logs, and reports can also beaccessed via a web browser. Nagios System and NetworkMonitoring covers the Nagios core, all standard Nagiosplug-ins and selected third-party plug-ins, and showsreaders how to write their own plug-ins. The book coversNagios 2.0 and is backwards compatible with earlierversions.