NS IP change, ouch!
Mark_Andrews at isc.org
Mark_Andrews at isc.org
Thu Dec 5 22:23:05 UTC 2002
>
> is there anyway to say anything that comes into a server, no matter
> what it is just forward the query onto another server? Within bind? Or
> should I just use a port forwarder?
>
> -Drew
Why bother? If the zones are setup correctly in the first
place there will be other nameservers that can answer. The
whole point of multiple nameserver is to remove single points
of failure.
Otherwise just continue to serve the zones on the old address
with the new data. It should only be for a fww days.
Port forwarding will not work unless you can force the traffic
back through the port forwarder. This is what happens with NAT
boxes.
It's easy enough to write a proxy that forwards the queries
adjusting id space in the process then forwards the responses
back reversing the id change the process. Just remember that
with EDNS you will need ~4k buffer for common EDNS sizes.
Mark
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark.Andrews at isc.org
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