Start Nagios

  • Next we will set Nagios to start automatically when the machine boots
  • $ sudo ln -s /etc/init.d/nagios /etc/rcS.d/S99nagios
  • Finally we get to run our PreFlight checks of the configuration files.
  • $ sudo /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
  • Output from the Pre-Flight check
  • Nagios 3.1.2
    Copyright (c) 2009 Nagios Core Development Team and Community Contributors
    Copyright (c) 1999-2009 Ethan Galstad
    Last Modified: 06-23-2009
    License: GPL
     
    Website: http://www.nagios.org
    Reading configuration data...
    Read main config file okay...
    Processing object config file '/usr/local/nagios/etc/objects/commands.cfg'...
    Processing object config file '/usr/local/nagios/etc/objects/contacts.cfg'...
    Processing object config file '/usr/local/nagios/etc/objects/timeperiods.cfg'...
    Processing object config file '/usr/local/nagios/etc/objects/templates.cfg'...
    Processing object config file '/usr/local/nagios/etc/objects/localhost.cfg'...
    Read object config files okay...
     
    Running pre-flight check on configuration data...
     
    Checking services...
    Checked 8 services.
    Checking hosts...
    Checked 1 hosts.
    Checking host groups...
    Checked 1 host groups.
    Checking service groups...
    Checked 0 service groups.
    Checking contacts...
    Checked 1 contacts.
    Checking contact groups...
    Checked 1 contact groups.
    Checking service escalations...
    Checked 0 service escalations.
    Checking service dependencies...
    Checked 0 service dependencies.
    Checking host escalations...
    Checked 0 host escalations.
    Checking host dependencies...
    Checked 0 host dependencies.
    Checking commands...
    Checked 24 commands.
    Checking time periods...
    Checked 5 time periods.
    Checking for circular paths between hosts...
    Checking for circular host and service dependencies...
    Checking global event handlers...
    Checking obsessive compulsive processor commands...
    Checking misc settings...
     
    Total Warnings: 0
    Total Errors:   0
     
    Things look okay - No serious problems were detected during the pre-flight check
  • Assuming you also got no errors or warnings you have just finished! Start Nagios now.
  • $ sudo /etc/init.d/nagios start
    Starting nagios: done.
  • Go to your browser and login!
  • http://YOURSERVERIP/nagios

Part 2 can be found here – http://www.sucka.net/2009/07/nagios-ubuntu-9-04-part-2/

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