RE: ssh tunneling

["Joyce, Matthew" <MJoyce@ccia.org.au>]

> i am not able to connect to a vnc-server thats running behind the 
> firewall. i know that the vncserver is running because i can open 
> vncviewers from other clients behind the firewall. but when i 
> ssh to the 
> gateway from localhost@some-internet-domain with the -L 
> 5903:vncserver:5903 option and forward from the gateway to 
> the vncserver 
> using another ssh -L ..., i am not able to connect to the 
> vncserver at 
> port 5903 on localhost. with a RealVNC viewer, i get an error like 
> "channel 2 or 4: administratively prohibited" and with 

You haven't said how you try to connect to your localhost on port 5903, but
I use localhost:1, localhost:2, localhost:3 etc.  Are you using the session
number ?

M