DevOps Classroom Series – 25/Jun/2021

Configuring Nagios

• Create Templates for the below so that we can add all the generic information inside the template
  • host definitions
  • service definitions
• Create Commands and define all the necessary commands for performing checks
• Create hostgroups and add different hosts to host groups (allservers, webservers, dbservers )
• Now create service defintions where we define checks using commands defined at the host group level

Exercise

• We have default nagios configuration in /usr/local/nagios/etc/objects

• Now try to make that default nagios configuration broken down into

  • nagioscfg
    • commands
    • timeperiods
    • templates
    • contacts
    • hosts
    • services

• Change the nagios.cfg to use cfg_dir instead of cfg_file