Monitoring small subsets of multiple networks

view full story

http://serverfault.com – What would be good software for monitoring multiple small and disparate networks? My company sells a product that requires deployment of a number of Linux servers on a customer's network (typically three servers but may be more). We currently have such deployments in 25+ networks and this number is growing. We would like to monitor the general health of the machines as well as the status of various custom bits of processing on each of these networks. We connect to them in a variety of ways (direct SSH, VPN, WebEx, etc) and so being able to see everything from both the command line and a web i (HowTos)