Re: TCP vs UDP

[Gene <gyoo () attbi com>]

Gene LeDuc wrote:

> Sorry to be blunt, but someone who doesn't understand the difference between
> UDP and TCP should not even consider setting firewall rules.  You need to
> buy a decent beginners level book on networking that covers tcp/ip
> fundamentals.
>
> -----Original Message-----
> From: Roberto Ramsis [mailto:robertoramsis () hotmail com]
> Sent: Friday, November 08, 2002 2:23 AM
> To: security-basics () securityfocus com
> Subject: TCP vs UDP
>
>
> hello
> 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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>  
I would recommend TCP/IP Illustrated Vol. 1-3 by Stevens