Looking for:
- monitoring public services (http, etc. - the usual)
- monitoring private info (disk space, memory, etc.)
- alert me when needed
- ideally something whose agent is very memory-light and can run on 128MB LEBs
- agent runs on Debian, Ubuntu, CentOS
- the master I'm less sensitive about but should fit inside a 512MB VPS
- free...or very low cost
- about 10 servers total to monitor
I was going to setup nagios for monitoring, but
- the plugins package doesn't compile after following the install guide
- the docs say they are incomplete (and they are). People say it's complex to setup but the docs are weak...that's what I've heard. I'd rather not embark on a voyage of discovery.
- I'm annoyed to discover there were packages I could have apt-getted instead of following the official docs (which build from source)...why the docs don't just say "run apt-get" is beyond me.
So - what else?
- Munin, though I don't think monitoring is really its strength or focus
- Zabbix - heard very nice things about this
- Observium, though again doesn't seem like a monitoring product per se
- Monit - haven't read much about this