nagios-plugins -- Host/service/network monitoring program plugins for Nagios
http://nagiosplug.sourceforge.net/
This package contains the basic plugins necessary for use with the Nagios package. This package should install cleanly on almost any RPM-based system. But you may need additional packages. Depending on what plugins you use, the following packages may be required: bind-utils, mysql, net-snmp-utils, ntp, openldap, openssh-clients, openssl, postgresql-libs qstat, radiusclient, samba-client, sendmail