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Extraneous DNS queries from Xymon

list Japheth Cleaver
Wed, 6 Jan 2016 14:11:06 -0800
Message-Id: <user-d285ed414e2d@xymon.invalid>

Hmm. "noconn" + "testip" should actually be all that's needed here,
assuming there are no other references to those (in URLs, for example).
I've used a lot of pseudo-DNS entries in configs before for the same
effect.

Can you run a copy of xymonnet in --debug mode and see if you see the
lookup there? If nothing, then an strace should reveal around when we're
doing it.

Have you noticed any patterns in *which* hosts you're seeing the lookup
for that you're not expecting it at? Or is it all of them?


-jc


On Wed, January 6, 2016 11:04 am, John Thurston wrote:
On 1/6/2016 9:54 AM, Robert Schetterer wrote:
Am 06.01.2016 um 19:38 schrieb John Thurston:
I have defined some hosts with fake host names:
   0.0.0.0  foo.bar.foo  # noconn
- snip - Even adding "testip" to the line doesn't
eliminate all of the queries.
try add
https://www.xymon.com/help/manpages/man5/hosts.cfg.5.html
testip
and noconn
As stated in my original message, 'noconn' is already specified for the
host. Adding 'testip' reduces the number of queries but does not
eliminate them.

I forgot to mention: xymon version 4.3.17 running on CentOS

--
    Do things because you should, not just because you can.

John Thurston    XXX-XXX-XXXX
user-ce4d79d99bab@xymon.invalid
Enterprise Technology Services
Department of Administration
State of Alaska