what protocols need UDP instead of just TCP?? DNS, IMAP, SSH, etc.?

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To: netfilter@xxxxxxxxxxxxxxxxxxx
Subject: what protocols need UDP instead of just TCP?? DNS, IMAP, SSH, etc.?
From: seberino@xxxxxxxxxxxxxxx
Date: Tue, 25 Jan 2005 16:05:50 -0800
Sender: netfilter-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mutt/1.4.1i

I'm only allowing TCP out of my firewall.

What apps/protocls need UDP?

DNS, IMAP, SSH, etc.?

I dunno if I need to allow UDP for anything.

chris

Follow-Ups:
- Re: what protocols need UDP instead of just TCP?? DNS, IMAP, SSH, etc.?
  - From: Jason Opperisano
- Re: what protocols need UDP instead of just TCP?? DNS, IMAP, SSH, etc.?
  - From: Jose Maria Lopez

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