Jun Salen wrote: > Hi, > > The Ping service in Nagios has "unknown" status which was previously OK, > this happens after i messed up some of the files owner and accidentally > change it to Apache. Although I restored most of the file permission back to > Root, the problem above still appears which I suspect is due to permission. > Does anybody have idea where to look at. >From what I can see nagios' check_ping monitor executes /bin/ping, in which case you need to make sure /bin/ping is owned by root and is setuid (chmod u+s /bin/ping) nate