And yet, it doesn't touch on forwarding of anything other than X11 data. To answer the original question, you're missing the host you're trying to connect to, but I'll fill in the blanks ssh -L X:host1:Y host2 means open a connection to host2, including shell, and forward anything sent to localhost on port X to host1 on port Y. Host1 and host2 can be the same machine. This comes in useful for things like forwarding VNC securely, e.g. ssh -L 60000:remotevncserver:5901 remotevncserver and then connecting to the vncserver at localhost:60000 ssh -R X:host1:Y host2 means open a connection to host2, including shell, and then host2 should listen on port X for connections, which it will then send back to your local host, which will forward the connection on to host1 on port Y. In your example you're missing the host you're connecting to, but I can tell you that: ssh 192.168.1.200 ssh -L 1000:192.168.1.100:2000 192.168.1.100 when you start from 192.168.1.100 is functionally equivalent to ssh -R 1000:192.168.1.100:2000 192.168.1.200 when you start from 192.168.1.100, in that both solutions will forward a connection from 192.168.1.200:1000 to 192.168.1.100:2000 (I didn't use the port 22 from your example, as that would imply that ssh wasn't running there, so you'd need to use -p and other messiness). Hope this helps, David J. Haines dhaines@xxxxxxxxx On Mon, Jul 18, 2011 at 3:12 PM, Jeffrey Lynn Parke Jr. < jeffrey.parke@xxxxxxxxx> wrote: > On Mon, Jul 18, 2011 at 2:05 PM, Daniel. <danielhilst@xxxxxxxxx> wrote: > > > I have some doubts about traffic forwarding > > > > Supposing that my IP is 192.168.1.100 > > and the remote is 192.168.1.200 > > > > is this -> ssh -R 1000:192.168.1.200:22 > > the same as this: > > ssh 192.168.1.200 > > ssh -L 1000:192.168.1.100:22 > > > > > > ??? > > > > -- > > *"Do or do not. There is no try"* > > * **Yoda Master* > > > > > You may want to read the wiki article for ssh. > https://wiki.archlinux.org/index.php/SSH > > It is very detailed. > > > -- > "Breath Deeply and Dream" >
