[dns-operations] How to plan dns server IP change?

[Jorge Fábregas]

On 06/15/2014 08:21 PM, Mohamed Lrhazi wrote:
> Thanks a lot Jorge. Am gonna go with option 2, and remove ns3 three days
> before cut-over, to be even safer.

Great.  One final thing (forgot to mention & realized is the MOST
important thing): please make sure you take into consideration the
*current* TTL of your nameserver records.  If the TTL is, say, 7 days,
you can remove the records today but you should wait, at least, 7 days
before the cut-off (plus some extra time for misbehaving resolvers).

Regards,
Jorge