False positive? (CRITICAL - Time to live exceeded)
Jason Byrns
jason-sourceforge at microlnk.net
Fri Oct 28 14:49:20 CEST 2005
Good morning, everyone!
We've been using Nagios for awhile, and I'm migrating to a newer server.
The new server is showing a false positive for just one host. Anyone
have suggestions on solving this problem?
The Nagios web interface shows this single host with a critical alert:
"Time to live exceeded (ip.add.re.ss)" It's being checked with a
"check-host-alive" command, which is defined as:
$USER1$/check_ping -H $HOSTADDRESS$ -w 3000.0,80% -c 5000.0,100%
This works just fine if I run the command from a shell. I can ping the
host in question with no problem. I already shut Nagios down to make
sure there were no extra processes running.
The system specs:
CentOS 4.2
nagios-1.2-2.2.el4.rf
nagios-plugins-1.4.1-1.2.el4.rf
I recompiled the check_DNS plugin from source, to solve the
Redhat-related bug that caused false positives for DNS services. But it
doesn't seem like this would affect my current problem.
--
Jason Byrns
Production Manager
System Administrator
http://www.MicroLnk.com/
402-328-8600 ext. 653
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