Re: Question about config SSH server, to restrict Port Forwarding

> ssh -R 9001:Alice:5900 Bob

In OpenSSH, this is the default. The port on bob will listen only on localhost, so you'd only be able to connect to it from bob.

desktop$ ssh -R 9001:whatever:5900 bob
...

bob$ netstat -natp|grep 9001
(Not all processes could be identified, non-owned process info  will not be shown, you would have to be root to see it all.)  tcp 0 0 127.0.0.1:9001 0.0.0.0:* LISTEN -

desktop$ telnet bob:9001
telnet: Unable to connect to remote host: Connection refused

--
Brian Hatch                  "Packet-Filtering Barbie."
   Systems and               - Failed attempt by Mattel
   Security Engineer           to get into the computer
http://www.ifokr.org/bri/      security world, before
                               buying CyberPatrol.
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