Bind 8.2.4 - IP Changeover

Kevin Darcy kcd at
Tue Jun 25 21:34:41 UTC 2002

Dan Brummer wrote:

> Hello all,
>     I'm running bind 8.2.4 on two FreeBSD 4.5-RELEASE, one running
> master zones and the other running slave zones.  The machines control
> DNS for 20-30 domains on the same network.  Recently I've had to
> renumber out the IP addresses and had to change all the zones.  I've
> reregistered the nameservers under different names and with the new IP
> addresses.  I still have the old IP addresses binded to the boxes and
> I've changed over all the nameservers for the domains, and all the zones
> to match the new IP addresses.  The problem I'm running into is that
> after a week and a half, most nameservers on the net still resolve to
> the old IP addresses and some dns servers resolve to the new IP
> addresses.  Is there a quick way to make sure every dns server is using
> the current records or am I out of luck?  The TTL on all the zones is
> set to 38400.  Thanks in advance for your replies.

Given the numbers of nameservers and zones you're dealing with, I'd just
brute force a problem like this: look through all of your zone data and
find out where the stale information is coming from.

- Kevin

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