[EMAIL PROTECTED] schrieb am 28.11.2005 14:06:26: > I have about 20 servers, for which I have no specific services to monitor, but > which I am interested in their host status, ie the check_command in the host > entry in the hosts.cfg file is set to check-host-alive. > > However, it appears that the host check_command is never executed, and > availability for the host is always Undetermined - Insufficient Data 1d 0h 0m > 0s 100.000% > > Also the status in Host Status detail is always pending, though there are no > other checks configured for this host. > > If I explicitly add a check-host-alive for the host in a service > configuration, > then the host appears as up in the Host Status Details list, but obviously I > would expect it to appears as UP due to the check_command > > Any ideas on whether this is the expected behaviour for the check_command > directive?
It is the expected behaviour. Nagios is a network monitoring tool, not a host-only monitoring tool. It actually expects that a host must have a kind of service running to be useful - which is more or less true in 99.99% of the cases ;) Therefor nagios works like this: 1. do the defined service-checks on all defined hosts 2. IF and only IF one of those checks fail, then issue a check_host_alive to see if it's a problem with the service or if the host is down It is safe to assume that a host is alive if its services are responding. Checking the host for being alive again is redundant unless one of its services fail. So you need to set up some kind of services for each host to have them appear as "UP". Though there _is_ a configuration option to enforce check_host_alive checks, but alas I cannot remember it. Your best friend is the documentation in this matter. (or just look through the configfile and check for this particular option) regards sash -------------------------------------------------- Sascha Runschke Netzwerk Administration IT-Services ABIT AG Robert-Bosch-Str. 1 40668 Meerbusch Tel.:+49 (0) 2150.9153.226 Mobil:+49 (0) 173.5419665 mailto:[EMAIL PROTECTED] http://www.abit.net http://www.abit-epos.net --------------------------------- Sicherheitshinweis zur E-Mail Kommunikation / Security note regarding email communication: http://www.abit.net/sicherheitshinweis.html ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click _______________________________________________ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null