Hey everyone! I'm on the hunt for a straightforward monitoring system for Linux. I used to work with Nagios back in the day, but I've found it quite complex lately and not really utilizing its full potential. I've got Nagios 4 installed, but the config syntax is tricky. What I need is a simple, multi-threaded solution that can monitor both SMTP (with STARTTLS and authentication) and HTTP/S. It would be great if it could also notify me about SSL certificate expiration dates. Ideally, I want a tool that can give statuses of 0 (normal), 1 (warn), or 2 (critical) for various checks, including polling some HTTPS endpoints that interact with MongoDB. I'm also looking for SMS/Email alert options to keep me updated on important issues. So, what are my options? Do you think I might end up having to create my own NodeJS monitors? Thanks in advance for the recommendations!
5 Answers
Have a gander at LibreNMS too. It’s pretty easy to set up, with most of the work managed through a web GUI. Plus, you can reuse some of your existing Nagios checks for SMTP and HTTP/S since it's compatible with Nagios plugins!
You might want to explore Checkmk as well. I just started using it and it packs a punch, though I wouldn't call it exactly simple. It's powerful for monitoring, and from what I gather, it's cheaper than some other options. Just be mindful that the community edition is quite different from Nagios.
I also used to rely on Nagios, but we migrated to Zabbix to handle our growing infrastructure. It’s been fairly easy to set up and manage devices. Just a heads up, the GUI is quite different from Nagios, but it gets the job done!
If you're looking for something a bit different, consider Prometheus paired with Grafana. I think that combination is really powerful for monitoring, but it's a bit of a shift from what you're used to.
Have you checked out Zabbix? It has a bit of a learning curve, but it's super versatile. I found it quite handy for turning various metrics into numbers, which you can then visualize on graphs and set up alerts. You might surprise yourself with what you can monitor!
Thanks for the tip! I'm considering Zabbix since many people seem to recommend it.
I agree, Checkmk can be complex, especially the GUI, but it’s worth looking into.