Problems with zone transfer - zero content
Danny Mayer
mayer at gis.net
Mon Oct 1 13:26:16 UTC 2001
At 03:21 AM 10/1/01, Michael Kjorling wrote:
>-----BEGIN PGP SIGNED MESSAGE-----
>Hash: SHA1
>
>Oh my, someone else who is behind on his reading...?
>
>Yes, you do need to open TCP port 53. See the RFCs. Queries go over
>UDP by default. If the answer is too big to fit into the 512-byte UDP
>packet, they are retried over TCP. Zone transfers always use TCP. All
>to port 53.
Zone transfers are always TCP. UDP is only used to check to see if a zone
transfer is needed before it happens, so you need both UDP and TCP access
through the firewalls for this to work.
Danny
More information about the bind-users
mailing list