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

Jim Mock mij at
Sun Jun 8 10:24:45 PDT 2003

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


> 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 for an 
article I wrote a few a years ago about this.

- jim

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

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