about tcp port 53
Tech W.
techwww at yahoo.com.cn
Mon Jul 27 02:33:56 UTC 2009
Hello,
what's the use of bind's tcp port 53?
is it used for dns update and zone transfer or something else?
If I have not been using dynamic update and transfer, can I block tcp port 53 using a firewall?
Thanks.
Regards,
Wah.
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