[CentOS] Solved - Re: DNS resolver over IPv6

Robert Moskowitz rgm at htt-consult.com
Tue Dec 30 14:29:45 UTC 2008



Robert Moskowitz wrote:
> I have a Centos server that is running BIND and has IPv6 global addresses.
>
> I have entered a number of AAAA records into this copy of BIND in a 
> local view and zone (tld is htt).
>
> Over IPv4, I have no trouble with nslookup ('nslookup - 127.0.0.1' and 
> 'nslookup - 192.168.128.55').  I get the AAAA records back.
>
> But if I try to use the IPv6 address of the system I get a time out.  
> Both from nslookup and from ping6.
>
> I setup /etc/resolv.conf as shown at: 
> http://docsun.cites.uiuc.edu/sun_docs/C/solaris_9/SUNWaadm/SYSADV5/p13.html 
> (the only hit I got on configuring resolv.conf for an IPv6 DNS server).
>
> I have turned off both ip6tables and iptables so it is not a firewall issue.
>
> Even 'nslookup - <ipv6 addr>' does not work.  I seem to recall a problem 
> with nslookup supporting udp over IPv6, but ping6 should not have that 
> problem.
>
> This is all on the single system running BIND.  I figure i got to get 
> that working before worrying about other systems!
>   

Per http://tldp.org/HOWTO/Linux+IPv6-HOWTO/hints-daemons-bind.html

I found out that I had to add to the options section in named.conf:

listen-on-v6 { any; };

It is obvious that the line:

query-source-v6 port 53;

Was not what is needed.

Grumble, grumble.
>
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>   


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