Year old IP keeps surfacing

Michael Kjorling michael at
Tue Feb 19 18:15:39 UTC 2002

Hash: SHA1

On Feb 19 2002 17:12 -0000, Ric wrote:

> Hi everybody,
> We have been running our own DNS for over 5 years now without any problems.
> However we changed the IP of our main webserver (
> almost a year ago (to a colocation facility) and ever since then the old
> (pre-move) IP keeps resurfacing across the internet, with varying percentages
> of the population getting the out of date IP. We worked around this problem by
> running a web mirror at the old IP but since we are now moving office this is
> no longer possible.

There's a glue record in place on the root servers:

> [michael at varg michael]$ dig a +trace
> ; <<>> DiG 9.2.0 <<>> a +trace
> ;; global options:  printcmd
> /...snip.../
> 172800 IN	A
>	172800	IN	NS
>	172800	IN	NS
> ;; Received 131 bytes from in 1385 ms
> [michael at varg michael]$

> As if to compound the problem, since we moved our DNS servers from our old
> office to the new one (and changed IPs, etc) our secondary is not picking up
> the changes from our primary. I only mention this since it seems like too much
> of a coincidence to be unrelated.

Did you update the SOA serial? If you moved the primary (I presume),
did you update the slaves' configuration with the new IP?

Michael Kjörling

- -- 
Michael Kjörling  --  Programmer/Network administrator  ^..^
Internet: michael at -- FidoNet: 2:204/254.4   \/
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