[87322] in North American Network Operators' Group
Re: Gothcas of changing the IP Address of an Authoritative DNS Server
daemon@ATHENA.MIT.EDU (Joe Abley)
Wed Dec 14 12:23:15 2005
In-Reply-To: <20051214165207.GC25396@vacation.karoshi.com.>
Cc: Eric Kagan <ekagan@axsne.com>, NANOG list <nanog@merit.edu>
From: Joe Abley <jabley@isc.org>
Date: Wed, 14 Dec 2005 12:22:40 -0500
To: bmanning@vacation.karoshi.com
Errors-To: owner-nanog@merit.edu
On 14-Dec-2005, at 11:52, bmanning@vacation.karoshi.com wrote:
> currently in the middle of such a safe, conservative
> transition leads me to believe that there will -NEVER-
> be a point w/ there are no queries to the old address.
> (he says, 24 months into a transition...)
It's probably reasonable to say that there are more historical
instances of B's address being hard-coded than there are for Eric's
authority server, though (and I'm guessing that he also doesn't have
to answer priming queries :-)
> The right
> tactic is to make the change, based on 2x the TTL of the SOA.
Joe
