Ports
Stephane Bortzmeyer
bortzmeyer at nic.fr
Wed Jan 28 09:13:46 UTC 2004
On Tue, Jan 27, 2004 at 09:53:19PM +0100,
Remko Lodder <remko at elvandar.org> wrote
a message of 50 lines which said:
> TCP 53 is used for very large queries and transfering zones.
^^^^
1) This is wrong: a resolver can use only TCP if it wishes.
2) What is your definition of "very"? A TLD like '.ro' (Romania) or
'.hk' (Hong-Kong) cannot even transfer its complete set of NS (I do
not mention the additional section, with the IP addresses) if the
query is at the maximum allowed size.
> I only open up port 53 on TCP level for zone transfers,
You are wrong.
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