Re: Putty forwarding dns lookups on port 53?

From: Darren Dunham (ddunham_at_redwood.taos.com)
Date: 02/24/04


Date: Tue, 24 Feb 2004 01:28:20 GMT

Arno <sender@nospam45443.com> wrote:
> Hi,

> I am using puttty to forward various ports to another server. Now I wanted
> to forward the DNS lookups to the other server and setup a tunnel from port
> 53 to port 53. It is running BIND 9.2.1 on RedHat 9 (configured to answer
> recursive queries from anyone, so the tunnel reporting an other source ip
> should not be a problem).

> However, I wasn't sucessful yet to get an DNS query through the tunnel. For
> Example I try on the winXP client in a dos box: 'nslookup yahoo.de
> 127.0.0.1'. I do see a difference when the tunnel is established and when
> not. But all I get back is:

Standard DNS lookups are UDP while ssh forwarding is TCP. Can your
client query via TCP?

-- 
Darren Dunham                                           ddunham@taos.com
Senior Technical Consultant         TAOS            http://www.taos.com/
Got some Dr Pepper?                           San Francisco, CA bay area
         < This line left intentionally blank to confuse you. >


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