apache error logs

[kilburn]

You can install it on the server itself, but it's obviously more effective when installed outside. In fact, I've a central server monitor installed inhouse (in our office), which surveys multiple remote (datacenter-located) servers.

False "all servers are down" notices are easy to filter if you setup the dependency infrastructure correctly (just make one "internet" router, so if it goes down you know that your office is out of order, not your servers and that's it).