nagios4

Legacy host/service/networking monitoring program. See also: nagios, nagios2, nagios3. More information: https://manned.org/nagios.

• Start nagios4:

nagios4 /etc/nagios4/nagios.cfg

• Start nagios4 in daemon mode:

nagios4 -d

• Start nagios4, print service check scheduling information to stdout, then shutdown:

nagios4 -s

• Verify configuration file:

nagios4 -v