Zabbix - my choise. :-)

Eeeeew OpenNMS ... a big fat java based app! :}

Shinken is the newcomer.
- Compatible to Nagios (Use your config & plugins without modifications)
- Written entirely in Python (Which guarantees that more than a few developers can understand the code)
- New distributed architecture which allows monitoring huuuge numbers of nodes (Add as many worker hosts as you want. Less bottlenecks. All communication takes place in memory)
- Not a toy. It's in use in productive environments since 2010.

http://shinken-monitoring.org

+1 for Shinken :)

Lot of enhancements from a simple Nagios.

Haters gonna hate :)

Have you actually used OpenNMS? Its footprint is in fact rather small compared to anything else that has a hope of scaling to manage as much stuff. If you're looking for something written with leanness foremost in mind, look elsewhere. If you're looking for something that can scale up to manage huge amounts of stuff, you're the target user.

Find the tool that works for you and use it. Promote it here. Succeed and prosper.

Don't troll another project on account of its chosen technology stack, though -- that helps nobody.

+1 for shinken

Nagios
 

Nagios is the best I tried. OpenNMS is written in Java, that's its problem.

Possible to have Centreon ?

Thanks

Fair enough. No, I didn't manage to get it installed and working within a day,
so gave up on the idea. I could give it another shot; it's been many years.

Had very good results in a rather large environment with Nagios & Cacti, though.



Cheers,
Tink

I have become quite a fan of Nagios.

Nagios of course, advanced features.

Then you should check out Icinga >_<

I used Kaseya(not free) for a long time, and after a job change I just configured a Nagios server after testing the following:
opennms
zenoss

and many others.

nvm.

Lot of posts in this thread are from accounts with one or two posts and newly created. Makes you think.