On Aug 8, 2011, at 1:50 PM, Chris Thompson wrote: > On Aug 8 2011, Mark K. Pettit wrote: > >> My resolvers, running BIND 9.7.3P3, are having a difficult time resolving >> the MX record for the zone "epza.gov.tw.". >> > [...] >> >> Any idea why this might be happening? > > The delegation for epza.gov.tw from the gov.tw zone specifies a single > nameserver dns.epza.gov.tw (with glue 163.29.43.1). But the server there > thinks that the nameserver for the zone is called ns.epza.gov.tw, and > that dns.epza.gov.tw is a CNAME with target ns.epza.gov.tw. > > Using CNAMEs like that doesn't work correctly. Making dns.epza.gov.tw > have a duplicate address record instead would work, but of course what > is really needed is to get the delegation in step with the zone itself. > > Having more than one nameserver for the zone wouldn't be a bad idea, > either ...
Thanks, this explained everything we've been seeing. Fortunately, it's not our fault, so we can punt. :) _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users