Basically i would like to have some kind of server statistics on my dashboard. Is there any package out there that does this out of the box. 

I know finding the health of the server is pretty simple, by checking the status code for 200. But what about other stats? Stats like, no of db queries, load on the server & db, no of visitors on the site right now etc. I know most of them are pretty simple, but is there any way of getting this information in realtime without slowing down the server.

Can we benifit from services like NewRelic Lite. We could use the api to get the information from NewRelic and just display them on the dashboard. Will that be a good idea?

**EDIT:**
I am also looking into [nagios](https://www.nagios.org), which looks like an opensource alternative to NewRelic. 

Any suggestions?