ScanToNag is a tool which scans your network for hosts and services and then generats configuration-files for Nagios.
How to use it
java -jar ScanToNag.jar --range 192.168.64.0/24 --range 192.168.62.0/24 --emit-templates --timeout 50 --contacts unix-admins --hosts-file hosts.conf --services-file services.conf --skip-reserved
This scans the 192.168.64.1-254 and 192.168.62.1-254 networks and generates hosts.cfg and services.cfg. When probing it has a timeout of 50ms and the default contact-group is 'unix-admins'.
While you're at it, take a look at CoffeeSaint as well: CoffeeSaint is a versatile nagios status viewer very usefull on a large monitor in the system administrators room!
If you're interested in the Nagios monitoring software or the Nagios Incident Manager, please follow this link to the Nagios website: it pays the hosting costs for vanheusden.com. Thanks!