Where is the Nagios main configuration file located?
The main configuration file is usually named nagios.cfg and located in the /usr/local/nagios/etc/ directory. Below you will find descriptions of each main Nagios configuration file option… This variable specifies where Nagios should create its main log file.
How do I include multiple resource files in Nagios?
You can include multiple resource files by adding multiple resource_file statements to the main config file – Nagios will process them all. See the sample resource.cfg file in the sample-config/ subdirectory of the Nagios distribution for an example of how to define $USERn$ macros.
How do I set effective group for Nagios to run as?
You may specify either a username or a UID. This is used to set the effective group that the Nagios process should run as. After initial program startup and before starting to monitor anything, Nagios will drop its effective privileges and run as this group.
What does the status check option do in Nagios?
Nagios tries to be smart about how and when it checks the status of hosts. In general, disabling this option will allow Nagios to make some smarter decisions and check hosts a bit faster. Enabling this option will increase the amount of time required to check hosts, but may improve reliability a bit.
How to check if the host is alive using Nagios?
Typically, this command would try and ping the host to see if it is “alive”. The command must return a status of OK (0) or Nagios will assume the host is down. If you leave this argument blank, the host will not be actively checked.
Who can write to the Nagios command line?
You only want the Nagios user (usually nagios) and the web server user (usually nobody, httpd, apache2, or www-data) to have permissions to write to the command file. If you’ve installed Nagios on a machine that is dedicated to monitoring and admin tasks and is not used for public accounts, that should be fine.
