> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:nagios-users- > [EMAIL PROTECTED] On Behalf Of Wouter Mignon > Sent: Thursday, March 09, 2006 8:10 AM > To: nagios-users@lists.sourceforge.net > Subject: [Nagios-users] Host checks not working on certain hosts > > Hello, > > I have a few switches that don't have any services attached, some of > them do their host-check and i receive mail/sms when they have are > unreachable but a few stay in PENDING state and don't seem to do any > checks. What could be wrong? >
Nagios is first-and-foremost a service monitor. With few exceptions*, host checks are never executed unless a service on that host returns a non-OK state. You need to have at least one service defined per host if you want it to be checked regularly. That service could be just another ping check. As to why some show OK and others show PENDING, I would speculate that they are listed as the parent for a device that has failed in the past. Nagios will check the host status of parents to determine if a child is down or unreachable due to higher level outages. * Starting with Nagios 2.0 you _can_ have regularly scheduled host checks but they affect performance and are discouraged. The parent checks are another case where a host check may be executed without a failure of a service on the device. -- Marc ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid0944&bid$1720&dat1642 _______________________________________________ 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
