It's stable. The performance is good.

The solution is very stable so stability is rated a nine out of ten. 

It is very stable. I would rate the stability a ten out of ten. 

We deploy Nagios on a cloud, so there are features like plugins. The help desk tickets plugins so we can monitor the lock files as well from main server and create dashboards.

The security-related features also are there to monitor antivirus and install or not on each and every server. 

The solution is stable.

Nagios is 100 percent stable.

In Nagios Core, I haven't had any minor problems in terms of stability. If any did arise, I never knew about it....!!!

It is a very stable product. I would rate the stability as a seven out of ten.

Nagios Core is highly stable.

I rate Nagios Core ten out of ten for stability.

It is a stable solution, and I would rate the stability at eight out of ten.

It has been rock solid.

The solution is stable and reliable. 

The stability of Nagios Core has been good in our usage.

Stability wise it just works without any major maintenance.

The tool is stable. I would rate its stability a six out of ten. 

It is fine. There are no concerns there. Our biggest challenge is that we get a lot of timeouts, but that seems to be because of our network setup. There are a whole bunch of spurious events being reported, but they're more timeouts in getting to the Nagios agents.

I have never had stability issues. Nagios has been stable for over 10 years. Although, we never left it running for more than two weeks without uploading new services, plugins, and threshold changes, then restarting it..

Nagios Core is stable.

Nagios Core is stable.

It's stable because it's a Linux based code, which is very basic. It doesn't have many big features, so it's stable. You can add a node in less than half an hour, I think.

There have been no performance issues.

I've had no stability issues. It's been very stable.

None. Under Linux, Nagios is pretty stable to the point that it could stay in place and active longer than most of the servers it monitored. Since the system can self test its configuration, it is normally impossible to start Nagios with a fault present.

The stability of the solution is quite good. We haven't had any issues per se. It's been reliable.

I find the solution stable. I don't have any complaints in regards to the instability of the product. We have used this product now for quite some time and we are happy with it.

There have been no performance issues.

I did encounter stability issues when exploring plugins, but not with Nagios itself. Other than that, I never faced any issues on the production side.

There have been no performance issues.

There have been no issues with the stability.

I'm running Nagios with CentOS 5 on one server with no problems. I'm going to update the server because of plugin requirements.

The product is quite stable, but it needs to be able to support larger amounts of hosts/services checks.

Supremely stable if you right size and maintain the system periodically

Nagios Core is a stable solution.

There have been no performance issues.

I have no stability issues.