Dear DNS folk, I'm thinking about multi-master setups to add some resiliency to our DNS infrastructure.
In our specific case we have a distribution server which slaves several zones from various different parties. They also send notify messages to this server. Once it transfers a zone, it sends notify messages to our public-facing DNS cluster, and they all transfer the zone from it. Obviously, this single distribution server is a single point of failure, and I'd like to get rid of it. The simplest solution is to add a second server to our infrastructure, with an identical zone configuration, so that it is also a slave for all the same zones. It would also transfer zones directly from the masters, and provide AXFR/IXFR to our cluster. Adding a second distribution server has management overhead though. We have several hundred masters, and even after contacting all of them, we will never have a 100% clean setup where the master allows zone transfers for both our distribution servers. So if I want to ensure that both our distribution servers hold identical copies of zones, then I would ideally want them to notify each other, and pull zones off each other as well. Do any of you do this? Aside from this idea, are there any other clever ideas people have implemented? Regards, Anand Buddhdev _______________________________________________ dns-operations mailing list [email protected] https://lists.dns-oarc.net/mailman/listinfo/dns-operations dns-jobs mailing list https://lists.dns-oarc.net/mailman/listinfo/dns-jobs
