I am relatively new to Nagios and I want to know how to configure passive checks on my Windows servers? How can I tell if they are active or passive? Specifically, I am using the NSClient++ agent on Windows, is there a difference between using the check_nt module vs. using NRPE to check processor, memory, or Disk Space?
Also, what is the most efficient (and scalable) way to monitor the eventlog?
Thanks in advance,