How do I set up a ssh tunnel between two FreeBSD systems ?

[Jim Mock]

On Saturday, June 7, 2003, at 09:36  PM, Josh Brooks wrote:
> Hello,

Hi,

> I have read the ssh man page and am not getting the results I think I 
> should.  some background:
>
> serverA is the client
>
> serverB is running sendmail on port 25
>
> I want to telnet to serverA on port 34 and get a response from the 
> sendmail daemon running on serverB.
>
> I tried this:
>
> ssh -L 34:serverB:25 user at serverB
>
> ^^^ seems to be what the man page instructs me to do ...
>
> But when I run that command, it asks me for a password, and I log into 
> serverB just like any other time I ssh there to log in.
>
> So that's that - the above command line does nothing but log me into 
> serverB.  If I port scan serverA, nothing is running on port 34.  So 
> basically it's a total bust.
>
> I am running this ssh command on serverA as root.
>
> So what am i doing wrong ?

Take a look at http://soupnazi.org/freebsdzine/200104/tunnel.php for an 
article I wrote a few a years ago about this.

- jim

-- 
jim mock    mij@{soupnazi|opendarwin}.org    jim@{bsdnews|FreeBSD}.org
http://soupnazi.org    editor-in-chief, BSD News    http://bsdnews.org