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Old 02-28-2009, 12:36 PM   #1
niels.horn
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Registered: Mar 2007
Location: Rio de Janeiro - Brazil
Distribution: Slackware64-current
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Question BIND causing many entries in /var/log/messages when using IPv6


Hi all,

This week I needed to set up a BIND server and noticed that it filled up my /var/log/messages with entries like:

Code:
Feb 28 12:49:08 niels-sw named[2737]: network unreachable resolving 'xxxx/AAAA/IN': 2001:500:28::1#53
Feb 28 12:49:08 niels-sw named[2737]: network unreachable resolving 'xxxx/AAAA/IN': 2001:500:44::1#53
Feb 28 12:52:43 niels-sw named[2737]: network unreachable resolving 'xxxx/AAAA/IN': 2001:500:27::1#53
Feb 28 12:52:43 niels-sw named[2737]: network unreachable resolving 'xxxx/AAAA/IN': 2001:500:25::1#53
Feb 28 12:52:43 niels-sw named[2737]: network unreachable resolving 'xxxx/AAAA/IN': 2001:500:26::1#53
(I changed the domain names to 'xxxx')

After some research with Google, I found a suggestion to start named with the '-4' option, forcing BIND to use IPv4 only.
So I changed /etc/rc.d/rc.bind and it solved the problem.

But now my question is why this happened and if there is a better solution than changing /etc/rc.d/rc.bind

My ISP doesn't do IPv6 yet. Should I blacklist the ipv6 module?

By the way, this is on a freshly installed 12.2 box.
 
Old 03-01-2009, 10:38 PM   #2
mRgOBLIN
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oops

Last edited by mRgOBLIN; 03-01-2009 at 10:49 PM.
 
Old 03-02-2009, 07:10 AM   #3
niels.horn
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Registered: Mar 2007
Location: Rio de Janeiro - Brazil
Distribution: Slackware64-current
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Not trying to bump my own thread, but...

Has anyone else noticed the same behavior of filling up /var/log/messages, or is it something with my configuration?
 
Old 10-31-2009, 03:58 PM   #4
.m.
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yes, I upgraded recently from fedora 8 - > 9 -> fedora linux 10 ( Cambridge ) and links stopped working and I saw a bunch of messages you mentioned in my /var/log/messages

I followed instructions here (my first post - sorry, no links allowed) :

blog.taragana.com/index.php/archive/how-to-disable-ipv6-on-fedora-linux-why/


and it works like a charm again

( everything even the upgrades were done through terminal/putty )
 
Old 10-31-2009, 06:31 PM   #5
BrZ
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Any downside if I disable IPv6 on kernel?
 
  


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