Not sure where the trepidation comes in here. Hopefully you ARE running a slave server as well so if the primary isn't reachable the slave would resolve lookups until you fixed any problem.
Here we've moved our servers from one network provider to another so had to change the IPs of the master and the slave at the Network registrars. We did those one at a time. That is to say we first did the slave and once we were sure it was resolving correctly and had allowed time for everyone's caches to clear (we waited 3 days/72 hours) then we moved the master. We've also completely replaced both our primary and slave by installing new servers and setting them with the IPs. There again we did it by doing one at a time. For those there was no propagation time since the IP stayed the same. If you're simply moving your master to a new IP (as the outside world sees it) then you'll have to allow time for the caches to clear as we did. If you're simply moving it to a new IP internally then your network folks should be able to NAT that IP to the same external IP your prior server had. -----Original Message----- From: bind-users-boun...@lists.isc.org [mailto:bind-users-boun...@lists.isc.org] On Behalf Of Thomas Manson Sent: Thursday, February 26, 2009 8:04 PM To: bind-users@lists.isc.org Subject: Change my primary DNS server safely... Hello, I need to change the primary DNS server which manage hundreds of domains. I've setup the new machine so that it has the correct named configuration for each domains (script generated). I plan to change the IP behind the ns0.mydomain.com so that it points to the new machine. As I feel it's a bit risky to do that, if you have any suggestion, I'll be glad to hear it. Thanks, Thomas. _______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users Please consider our environment before printing this e-mail or attachments. ---------------------------------- CONFIDENTIALITY NOTICE: This e-mail may contain privileged or confidential information and is for the sole use of the intended recipient(s). If you are not the intended recipient, any disclosure, copying, distribution, or use of the contents of this information is prohibited and may be unlawful. If you have received this electronic transmission in error, please reply immediately to the sender that you have received the message in error, and delete it. Thank you. ---------------------------------- _______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
