Would be strange topic for cheating, wouldn't it ?! ;-) Yes, it is real. I can bind two times to the same local port for better (or most probably) worse of it. /wbr Ariel Burbaickij On Wed, May 27, 2009 at 8:34 PM, Greg Wooledge <wooledg@xxxxxxxxxxx> wrote: > On Wed, May 27, 2009 at 10:52:30AM +0200, Ariel Burbaickij wrote: >> >> ssh -L 7777:localhost:7777 some_user_name1@system1 >> >> Then the second user comes and sets up the section in following way: >> >> ssh -L 7777:localhost:7777 some_user_name1@system2 >> >> He is successful in setting the second port forwarding session. > > Really? I get an error when I try to duplicate your results: > > imadev:~$ ssh -L 7777:localhost:22 vandev > RSA host key for IP address '10.76.142.101' not in list of known hosts. > wooledg@vandev's password: > bind: Address already in use > channel_setup_fwd_listener: cannot listen to port: 7777 > Could not request local forwarding. > >> On attempt to connect to local port 7777 second user is forwarded to system1. > > Right, because the second user failed to set up the forward. So he's > just using the successful first forward, which anyone on the client > system can use. >
