Munin vs Nagios

Munin and Nagios are really different tools.

From the official Munin website:

Munin is a networked resource monitoring tool that can help analyze
resource trends and “what just happened to kill our performance?”
problems. It is designed to be very plug and play. A default
installation provides a lot of graphs with almost no work.

Nagios is a monitoring (alerting) tool. Munin could be considered a replacement for Cacti.

We use both of them: Nagios and Munin.

  • Nagios tell us in real time if something is wrong: like web server down, database load average, etc.
  • Using Munin you can see the trends and the history about why that happenend.

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