Naemon offers monitoring and alerting services for servers, switches, applications, and services.

It alerts the users when things go wrong and alerts them a second time when the problem has been resolved.

Naemon was created in 2014 as a fork of Nagios.

[2][3] It is available for Red Hat, CentOS, SUSE, Debian and Ubuntu Linux distribution.

[4] Naemon is open source software licensed under the GNU GPL V2.