Ports

[Stephane Bortzmeyer]

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.