Strange behaviour after nsupdate

Christian Ruppert idl0r at qasl.de
Tue Nov 9 21:25:22 UTC 2010


On 11/09/2010 10:11 PM, Christian Ruppert wrote:
> Hey guys,
> 
> I have a zone that I update remotely via nsupdate. When I update the
> zone and query it internal (view) I get the correct answer but when I do
> a query from outside I still get the old A record.
> So the same nameserver gives different answers.
> 
> "dig my.zone.tld A +short @ns.zone.tld".
> 
> I have a internal view as well as a external view. The biggest
> difference between those two is that the external view has recursion,
> additional-from-auth and additional-from-cache disabled.
> 
> Both views include the hint (root.cache) and the same zones.conf.
> The internal view includes additionally 127.in-addr.arpa and a localhost
> zone.
> 
> ls -l /etc/bind/dyn/my.zone.tld.zone*
> -rw-r--r-- 1 named named  386 2010-11-07 11:22
> /etc/bind/dyn/my.zone.tld.zone
> -rw-rw---- 1 root  named 2636 2010-11-07 11:08
> /etc/bind/dyn/my.zone.tld.zone.jnl
> 
> Any ideas what could be wrong?
> 

I forgot to mention that I use bind-9.7.2-P2.
Removing the journal (as a workaround for now) helps although it's no
solution.
The nsupdate commands are:
server ns.zone.tld
zone my.zone.tld
update delete my.zone.tld <TTL> A <OLDIP>
update add my.zone.tld <TTL> A <NEWIP>
send

-- 
Regards,
Christian Ruppert

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