Red Hat Security Advisory 2017-0214-01 – Nagios is a program that monitors hosts and services on your network, and has the ability to send email or page alerts when a problem arises or is resolved. Nagios is written in C and designed to run under Linux as a background process, intermittently running checks on various services that you specify. The actual service checks are performed by separate “plugin” programs which return the status of the checks to Nagios. Nagios plugins are available at http://sourceforge.net/projects/nagiosplug. This package provides the core program, web interface, and documentation files for Nagios. Development files are built as a separate package.