Have two questions about the switchover of our external nameservers:
I'll call the old nameservers oldns1, oldns2, offsitens and the new nameservers newns1 and newns2
Q1: I had thought to add newns1&2 to the whois record, whether or not they are online. Just as my offsitens gets all the traffic if we have a power/connectivity failure and go off the air, it would seem to me that if the newns1&2 aren't there, oldns1&2 plus offsitens will carry it as they always have. Is there any problem with this?
So after the new WHOIS record comes into play, I can bring newns1&2 online and they'll take 2/5ths of the traffic, more or less. If they seem to be running fine, I can disconnect oldns1&2 to see how the new stuff takes prime responsibility, but bring the old stuff right back if there's a problem, The two other switchover alternatives are 1) updating WHOIS to be either the new or old nameservers...which involves godawful latency OR 2) playing games with the new nameservers so that they answer to the addresses of the old nameserver in addition to their native addresses...which could be messy and introduce weirdness.
Just adding the newns1&2 to the WHOIS seems to be a lot simpler and allow for a quick phasein and, if necessary, fall back. Am I missing something? Seems too easy to be true.... Finally, when the new stuff proved out, I'd just remove the oldstuff in WHOIS...
Q2; The only messiness I can see about what I want to do is that SOA nameservers list in oldns1&2 and offsitens would be just them and in the newns1&2, just those and offsitens....though I could include all in both. I guess my questions is: If nameserver sourcing for the Internet is determined by the WHOIS record info being reflected in the root-servers, where does the SOA nameserver list get used?
Forgive me if I reveal collossal ignorance and misunderstanding........ -- "Grant us, in our direst need, the smallest gifts: the nail of the horseshoe, the pin of the axle, the feather at the pivot point, the pebble at the mountain's peak, the kiss in despair, the one right word. In darkness, understanding." Paladin of Souls by Lois McMaster Bujold -- Stewart Dean, Unix System Admin, Henderson Computer Center, Bard College, Annandale, New York 12504 sd...@bard.edu voice: 845-758-7475, fax: 845-758-7035 _______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
