hey,
 
        I believe that FTP uses two different ports (at least in active
mode), 20 and 21 (default). Normally the data passes through one and the
commands through the other (which explains why you may not be able to
list the content of your directories)
 SSH however only uses one.
        
ftp://ftp.isi.edu/in-notes/rfc959.txt

Larry

On Sat, 7 Apr 2001, Tim Jones wrote:

> Hi. Port 22 is the one that I'm forwarding since that
> seems to be the standard SSH port. But someone told
> me that there's another one that I need to be
> forwarding to get this to work. Any ideas?
>
>
> --- Peter Hessler <yodadoayahoo.com> wrote:
> > port 22 if i remember correctly...i'm drunk, so if i
> > don't make sense,
> > then check the /etc/services file. grep for your
> > port number
> >
> >
> > --- Tim Jones <t0psecretyahoo.com> wrote:
> > > Hi.
> > >
> > > I'm trying to forward FTP from a certain port on
> > my
> > > external OpenBSD machine to port 21 on my internal
> > > OpenBSD machine. I have it to the point where I
> > can
> > > get to the internal machine and be authenticated;
> > > however, I can't list the contents of any
> > directories.
> > >
> > > Someone told me that this is due to SSH using two
> > > ports, and since I'm only forwarding one of them,
> > > that's why it doesn't work. Is this accurate? If
> > so,
> > > which other port does SSH use besides the one I
> > tell
> > > it to listen on?
> > >
> > > Thanks!
> > >
> > > __________________________________________________
> > > Do You Yahoo!?
> > > Get email at your own domain with Yahoo! Mail.
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> > >
> >
> >
> > =====
> > Peter Hessler
> > <yodadoayahoo.com>
> >
> > __________________________________________________
> > Do You Yahoo!?
> > Get email at your own domain with Yahoo! Mail.
> > http://personal.mail.yahoo.com/
>
>
> __________________________________________________
> Do You Yahoo!?
> Get email at your own domain with Yahoo! Mail.
> http://personal.mail.yahoo.com/
>

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