# Starting and Stopping Nagios

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See Also: Verifying Your Configuration

There's more than one way to start, stop, and restart Nagios. Here are some of the more common ones...

Tip: Always make sure you verify your configuration before you (re)start Nagios.

Starting Nagios

1. Init Script: The easiest way to start the Nagios daemon is by using the init script like so:

       /etc/rc.d/init.d/nagios start

2. Manually: You can start the Nagios daemon manually with the -d command line option like so:

       /usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg

Restarting Nagios

Restarting/reloading is nececessary when you modify your configuration files and want those changes to take effect.

1. Init Script: The easiest way to restart the Nagios daemon is by using the init script like so:

       /etc/rc.d/init.d/nagios reload

2. Web Interface: You can restart the Nagios through the web interface by clicking the "Process Info" navigation link and selecting "Restart the Nagios process":
3. Manually: You can restart the Nagios process by sending it a SIGHUP signal like so:

       kill -HUP <nagios_pid>

Stopping Nagios

1. Init Script: The easiest way to stop the Nagios daemon is by using the init script like so:

       /etc/rc.d/init.d/nagios stop

2. Web Interface: You can stop the Nagios through the web interface by clicking the "Process Info" navigation link and selecting "Shutdown the Nagios process":
3. Manually: You can stop the Nagios process by sending it a SIGTERM signal like so:

       kill <nagios_pid>