Many of the large ISPs used to run hacked resolvers that ignored low TTLs. Not sure if this is still the case, but it was maddening when trying to manage moves a few years back.
It really is nicer to leave them at something more reasonable most of the time. On Jun 25, 2012, at 8:09 , Michael Picher wrote: > yea good point... maybe i'm a bad interwebber but i always set mine to 5 mins > :-) > > On Mon, Jun 25, 2012 at 10:02 AM, [email protected] <[email protected]> wrote: > BTW you may want to lower the TTL of the old zone before doing so if you've > got access to it. It may take a few to propagate around. > > > From: [email protected] > [[email protected]] On Behalf Of Michael Picher > [[email protected]] > Sent: Monday, June 25, 2012 9:53 AM > To: [email protected]; Discussion list for users of sipXecs software > Subject: Re: [sipx-users] DNS SRV one domain to another for remotes > > yes, just set a domain alias on the new cluster with the old domain... then > swing the external dns A records to point to the new outside IP's. > >
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