On 17.09.09 11:16, RUOFF LARS wrote: > The reason for this is: > I have a hot-swap redundant system where 1 out of 2 servers is active at > any given time and the other is standby. DNS is (mis?-)used to tell the > clients which one is active at a given moment. > The idea is that clients resolve a name of the server and the result is > the address of the server that is currently active. (Only the current > active server responds to DNS queries for its own name).
not possible with BIND. And, I hope, you won't use this in public (outside of your network). I better wouldn't code such beast since people WOULD use that in public... > > I don't think delegation is the solution to your > > load-balancing requirement, however. NS'es are tried, > > sequentially, according to historical RTT statistics; > > _over_time_, faster-responding servers will tend to get tried > > before slow-responding ones, but this adaptivity may take > > time to kick in when the responsiveness of the target > > nameservers changes, so it would probably not be dynamic > > enough to meet your requirements, even _if_ the latency of > > DNS responses were reflective of the performance of the > > underlying app (which I question above). > > As said, my issue is not really load balancing, but active-standby > switching, where only one server will ever respond at any given time. There are packages that do that, using DNS for that is not good idea. -- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. How does cat play with mouse? cat /dev/mouse _______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users