i am trying to modify my nagios a little. At the moment i monitor 60 servers with 340 checks. What i want is to see how many users are logged in in total. I have 9 terminal servers and i really dislike to keep on adding up all active sessions.
Is there a way to take the output from 9 checks and add them up? This could be very handy too if you want to know your cumulative CPU usage over x servers, same with memory.
Hopefully someone of you knows a trick for this