PUBLIC MARKS with tags dns & monitoring

Nagios is a powerful, modular network monitoring system that can be used to monitor many network services like smtp, http and dns on remote hosts. It also has support for snmp to allow you to check things like processor loads on routers and servers. I couldn't begin to cover all of the things that nagios can do in this article, so I'll just cover the basics to get you up and running.

DNSreport - What is it? This test provides comprehensive information (56 tests, to be exact) about the specified domain that may verify DNS 'health' or identify problems or issues.