Nagios Ubuntu 18.10 - Managing
Again to Check Nagios Installation.
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
Finally, to Start up Nagios.
/etc/init.d/nagios start
And to Access the Nagios Web Interface.
http://localhost/nagios
User: ‘nagiosadmin’
Pass: That you Setup Before