Re: Moving name servers

Paul Jarc wrote:
> DAve <[email protected]> wrote:
>> My question, as I work on these last few clients, is this. It seems to
>> me I can simply change the IP of the name servers in the old domain to
>> the IP of the new servers and immediately see the traffic leave the
>> old name servers.
> 
> It won't be immediate, since some resolvers will still have the IP
> addresses of your old name servers cached.  Make the change, wait a
> few days for the traffic to your old servers to die off, then get rid
> of the old servers.  You'll have to make the change on the old servers
> as well as on the new servers and parents.

Absolutely...

> 
> If you change the NS names, there's a more complicated procedure to
> ensure you don't become invisible to some old buggy BIND resolvers:
> http://marc.info/?l=djbdns&m=103505741508241&w=2

I generally wait at least 72 hours before I expect anything is DNS to 
change. Clients with AD have caused me much grief.

> 
>> Checking with Register, NetSol, Tucows, and OpenSRS, they all use the
>> FQDN of the authoritative server, no IP is entered into the management
>> section.
> 
> Sounds like you have glueless delegations.  You might want to
> reconsider that.
> http://cr.yp.to/djbdns/notes.html#gluelessness

Yes, I would, but it is inherited company policy to make 
our_dns_client.com use ns1auth.tls.net as their name servers. I pick my 
battles, happy to be giving the Bind servers the ole' heave hoe right 
now in favor of djbdns.

Once everything is switched and the dust settles, the new management 
interface will start creating proper NS records and A records for new 
clients as "ns1.our_dns_client.com A <our ns1 IP address>". The account 
managers already know they will eventually need to register domains with 
the new NS record when that happens.

DAve

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