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Re: TCP vs UDP
From: "jnf " <profane () friction net>
Date: 13 Nov 2002 19:51:30 -0000

really you need an understanding of what your implementing, there is no one answer here as some services will require 
tcp, some will require udp, some will require both and some will require neither, it all depends on the application, as 
to what protocols an application needs, if it has an rfc that would be a good place to look, if it doesnt, a packet 
sniffer can always help, and if all else fails, if the source is avail. you can check through that.

Roberto Ramsis wrote:

thanks to everyone who replied to my last msg
what's the difference between a port TCP and UDP?
i am talking from a firewall concept,i want to know ,if i need to 
block a port,when should i block TCP and when UDP and when both?
Thanks in advance

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