I think you have something broken, bind uses UDP by default, if it can not connect to a dns server on UDP it then retries on TCP.
It also uses TCP for AXFR's On Sun, 2011-10-23 at 05:50 +0200, Benny Pedersen wrote: > On Sat, 22 Oct 2011 20:42:08 -0700, Kevin Oberman wrote: > > On Sat, Oct 22, 2011 at 8:24 PM, Benny Pedersen <m...@junc.org> wrote: > >> can i control this pr zone when bind is dns client ? > >> remote server is rbldnsd with is not supporting tcp, how to solve > >> this ? > > > > You have a badly broken DNS if it does not support TCP. You need to > > fix this. Anything else is a band-aid that will just keep breaking > > things. > > thanks, its good to know that i am right rbldnsd is not working if its > not supporting tcp, i just ask if i can make bind always use udp to > zones that are known to be udp only servers > > _______________________________________________ > 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
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