DNS migration and folks that don't play nice

[Thomas Charron]

On 4/10/06, Cole Tuininga <colet at code-energy.com> wrote:
>
>
> Preface -
> The folks on the sys-admin list are talking about the migration of
> services from the older server to the newer server.  Of course, one of
> the issues that's come up is DNS.  This led to the following snippet:
> On Sat, 2006-04-08 at 09:04 -0400, wrote:
> > > Well, there's at least one easy workaround for that, aside from the
> > > obvious (shorten TTL ahead of time, to force fast propagation).
> > Unfortunately, shortening the TTL doesn't work for clients (like AOL)
> > that cache/maintain their own DNS.
> I was curious - how do folks in general deal with this?  While AOL can
> certainly constitute a large number of users, my inclination is to say
> "hell with 'em".  If they can't conform to proper netiquette, why should
> I be bending over backwards to support them?


  Becouse your users may be using them.  ;-)

  Best suggestion is, add the new DNS servers into the root server, so that
both the old AND new servers are present.  Wait for this to propogate, bring
up the new servers, bring down the old, and remove the old servers entries.
Doing it over a period of a few days, tends to work best.

  Thomas
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