On Tue, Oct 30, 2012 at 06:48:03PM +0100, Posner, Sebastian wrote: > a b wrote: > > > Nevertheless, in my experience, this should be handled by the pdns > > software. > > I'm thinking that if pdns supermaster is capable of "persuading" a > > superslave > > to become a slave for a domain, and then a transfer takes place, would it > > not > > be logical to expect that when said domain is removed from the supermaster, > > the superslave gets a message to ditch said domain? > > A supermaster is only supermaster from the superslaves point of view. > A pdns superslave is in absolutely no way bound to have another pdns > acting as supermaster. This is due to the means that are used for > supermaster-superslave communications: DNS onboard means. > > In fact, I'm running a pdns as superslave to a stock bind9. > Works like a charm. > > Superslave operation is nothing but a special way to treat DNS notifies > received from a remote server for a domain we ware not authoritative/ > configured for. There is no special "supermaster message type" the > supermaster must know about and use for communications with the superslave. > Hence, there is nothing that can be changed on supermaster side to > communicate zone deletions to a superslave. > > The changes would thus have to be made on superslave side: > Eitehr one would have to change how superslave reacts when a supermaster > ceases to claim responsibility for a zone it has caused to be created; > or you use an addon-tool like the on from Mark Scholten that generally > does exactly this - Check for all slave domains with the according master > whether it's still present, and start giving it the count if it isn't. > > Kind regards, > > Sebastian
Hi, It would be hideously ugly, but you could leverage a special content DNS record to allow the super master to tell the slave that the domain is or will be deleted. It would require a little bit of smarts/timing and cooperation but it should work. Regards, Ken _______________________________________________ Pdns-users mailing list Pdns-users@mailman.powerdns.com http://mailman.powerdns.com/mailman/listinfo/pdns-users
