about tcp port 53
Stephane Bortzmeyer
bortzmeyer at nic.fr
Tue Jul 28 13:28:17 UTC 2009
On Mon, Jul 27, 2009 at 10:33:56AM +0800,
Tech W. <techwww at yahoo.com.cn> wrote
a message of 23 lines which said:
> what's the use of bind's tcp port 53?
DNS requests and responses.
> is it used for dns update and zone transfer or something else?
Everything else.
> If I have not been using dynamic update and transfer, can I block
> tcp port 53 using a firewall?
Certainly not.
More information about the bind-users
mailing list