> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:nagios-users- > [EMAIL PROTECTED] On Behalf Of David Schlecht > Sent: Friday, July 28, 2006 10:20 AM > To: nagios-users@lists.sourceforge.net > Subject: [Nagios-users] plug timeout w/o Bind > > Hi All, > > > > I'm running Nagios v2.2 on a suse linux without Bind. > > When my first nameserver in resolv.conf fails, the > > Nagios checks start timing out. I get a mix of timeout > > errors and "no response" errors. > > > > This isn't really a big surprise since relying on > > resolv.conf is very slow when the DNS servers start > > dropping off. Of course, the name resolution works > > eventually but by then my 10-second timeout settings > > have given up. > > > > Has anyone using resolv.conf encountered and/or resolved > > this? Is Bind a requirement because of this?
My comments -- - Don't rely on DNS at all. Use IP addresses. Why require a critical infrastructure resource (monitoring) to depend on another potentially fallable infrastructure resource (DNS) when you don't have to? If you have a problem, how do you know if it's the device/service you are monitoring or your DNS? Why spend the time determining that when you can eliminate it as a factor? - If you must rely on DNS then the only actions you can really take are to - increase your timeout value to account for those times when one or more of your DNS servers are unavailable. - load balance your nameservers such that a group answers for the same IP. If one fails out the others will still answer. There are a number of ways to do this with hardware/software or network configuration. - Running bind on the nagios box just moves the point of failure rather than eliminating it. -- Marc ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ 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