> Nagios, MRTG I am used to rolling my own and use Nagios to make sure my servers and web sites are up and URLs and scripts functioning. I used to use MRTG an

> Nagios, MRTG I am used to rolling my own and use Nagios to make sure my servers and web sites are up and URLs and scripts functioning. I used to use MRTG and RRDTool in days past when I was responsible for monitoring many servers, switches and routers.