Hi,
One of our AD-servers went down for maintenance for 1 week, and I disabled the conn+dns tests in Xymon for that period. Now the "bbtest" column suddenly goes yellow, and indicates that DNS lookups takes 450+ seconds now (indicating that the DNS-check for the maintenanced server is still active).
No, it indicates that the Xymon server is taking a long time to resolve host names to IP addresses. You may need to configure the DNS client settings on the Xymon server (e.g. adjust the 'server' parameters in /etc/resolv.conf).
If you have most IP addresses hardcoded correctly in bb-hosts, you may want to add the 'testip' flag to the relevant lines of bb-hosts.
But why is the check still running against the AD-host I've disabled? It looks like its that exact dns-check that takes 450 seconds to run (timeout). Looking at the DNS-statistics:
DNS tests executed 4602546.200466 450.096498
which is the normal checks + the 450 second timeout. All other dns-checks run fine.
Shouldnt I except something like this (from the conn checks):
"System unreachable for 764 poll periods (363317 seconds)"
instead of:
"Service dns on xxx07 is OK Dialup host/service, or test depends on another failed test Host appears to be down Timeout Seconds: 450.003"
when I've disabled all the checks on the host, and the server is powered down? Or am I missing something here?
/melgaard