tcp or udp

Joseph S D Yao jsdy at
Fri Jun 28 12:15:07 UTC 2002

On Thu, Jun 27, 2002 at 09:06:53PM +0000, Frank Liu wrote:
> Hi all,
> If I configure the fw to ONLY allow tcp port 53 to my nameservers,
> will it cause a problem for the clients and their resolver nameservers?
> I understand udp is more efficient. I just want to do if tcp will work.
> Thanks!
> Frank

Do you need your heart more, or your lungs?

You need both.

If you run 'named' on your firewall, you can set it up to proxy queries
in both directions.  Using UDP  a n d  TCP.

Joe Yao				jsdy at - Joseph S. D. Yao
OSIS Center Systems Support					EMT-B
   This message is not an official statement of OSIS Center policies.

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