about tcp port 53

[Tech W.]

--- On Tue, 28/7/09, Stephane Bortzmeyer <bortzmeyer at nic.fr> wrote:

> 
> > what's the use of bind's tcp port 53?
> 
> DNS requests and responses.
> 

oh, I was always thinking dns requests and responses are going with udp protocal. under what condition it uses tcp protocal?


Regards,
Wah.


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