I want to monitor my small vps node; presently serving by nginx. I do not want to use apache2; presently considering monitorix, suggest me the best lightweight monitoring system run under nginx ?
I've previously had experience deploying Munin. It's fairly good if you want to track the basics (CPU/Disk IO/RAM/Network IO) and you can extend it if you want.
It generates static HTML files in
/var/cache/munin/www that you can just point nginx at.
It's pretty much as simple as that but you can also have Munin monitor the status of nginx. This tutorial as as good as any of the others.