Great for smaller and medium orgs. If larger, configure it right. Don't over-customize.
April 11, 2018

Great for smaller and medium orgs. If larger, configure it right. Don't over-customize.

Anonymous | TrustRadius Reviewer
Score 7 out of 10
Vetted Review
Verified User

Overall Satisfaction with Nagios

Nagios agent comes standard on our servers for our enterprise. It's used for component monitoring out of the box and can have other checks added for custom apps, calls, etc. Every department's server has Nagios running in one form or another.

Pros

  • Open Source
  • Easy to set up, build checks
  • It's been around for a while, so integrations to more modern monitoring systems have a Nagios plug-in.

Cons

  • If it gets too customized, upgrading becomes very difficult. They've addressed this in recent years with Nagios Core and add-ons, but legacy still has this problem.
  • Good because it's standard for our org so everything that's spun up has some kind of monitoring in place
  • Bad because it was poorly configured, so alerts will fire.
  • If the host is down, all alerts fire off because none of the checks will work. Area for improvement.
Nagios is a good start, but as soon as an alert is triggered, you have to go searching and digging. It's better as a trigger and integrated with more robust, intelligent monitoring tools.
Great for basic, up/down component monitoring. Also good for canary checks, file directory monitoring, etc. It's a good Boolean monitoring tool, but once it fires off an alert, obtaining more data is problematic. It's nice, but it can be noisy if not implemented in an enterprise-wide, scalable, and manageable way.

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