Installing Nagios in OpenBSD

Nagios is an advanced, open source host, service and network monitoring program. First time users may find it complicated and daunting to install and use at first but when they get the hang of it, it’s pretty straight forward. In my case, it took me almost a week to get the hang of it.

In this quick howto we will set it up to do the most basic of tasks, notify us if something is amiss. Here we will:

1. Install Nagios
2. Configure a Nagios vhost in Apache
3. Protect your Nagios site from unauthorized access
4. Create Contacts and Contact Groups
5. Create Time Periods
6. Create command files
7. Add hosts to monitor
8. Add services to monitor
9. Create Host Dependencies
10. Configure the Nagios main configuration file
11. Preflight check our configuration
12. Run Nagions in daemon mode



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