[Nagiosplug-devel] [ nagiosplug-Bugs-2550224 ] check_ntp: wrong output for host with both A and AAAA record

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Bugs item #2550224, was opened at 2009-01-30 21:40
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Category: General plugin execution
Group: CVS
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Jan Wagner (cyco_dd)
Assigned to: Nobody/Anonymous (nobody)
Summary: check_ntp: wrong output for host with both A and AAAA record

Initial Comment:
The following Bugreport we got against our debian package: 

Please consider this:

$ host -t any lipton.aai.niif.hu
lipton.aai.niif.hu  	A	193.225.14.195
lipton.aai.niif.hu  	AAAA	2001:738:0:701:80:C1E1:EC3:0
$ /usr/lib/nagios/plugins/check_ntp -H lipton.aai.niif.hu -v
sending request to peer 0
sending request to peer 1
response from peer 1: offset -2.680183388e-05
sending request to peer 1
response from peer 1: offset -1.871510176e-05
sending request to peer 1
response from peer 1: offset 3.834080417e-06
sending request to peer 1
response from peer 1: offset -3.614556044e-05
re-sending request to peer 0
re-sending request to peer 0
re-sending request to peer 0
re-sending request to peer 0
re-sending request to peer 0
re-sending request to peer 0
overall average offset: nan
NTP OK: Offset nan secs|offset=nan

This isn't serious, since one uses IP addresses anyway, but still a bug.
Sure the client doesn't respond to IPv6 packets, but its offset isn't NaN.

You can track the bugreport via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=509589

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https://sourceforge.net/tracker/?func=detail&atid=397597&aid=2550224&group_id=29880