![Tunel manager ssh](https://kumkoniak.com/79.jpg)
![tunel manager ssh tunel manager ssh](https://image.slidesharecdn.com/tutorialopenvpnsetupsshtunel-170101120124/95/tutorial-open-vpnsetup-ssh-tunel-1-638.jpg)
What then, if you want to open up a tunnel within your local network, when you don’t have a ‘remote side’ per se? In this case you actually have two options.
![tunel manager ssh tunel manager ssh](https://www.manageengine.com/products/passwordmanagerpro/images/one-click-auto-logon.jpg)
If you try to forward to a host not in the same local network, you’ll probably get an error message like channel 2: open failed: administratively prohibited: open failed.Īs I haven’t got any deeper understanding of how the tunneling mechanism actually works, I can’t really say why you can’t do this, but on the other hand, why would you want to? ‘Local’ tunnels This requires the host kermit to be available in the same local network as the machine you logged in to. Start a tunnel from here (where the command is issued) on port 10001, then go to as user fredrik and end the tunnel at a host named ‘kermit’ on port 80 over there. This is easily achieved by changing ‘localhost’ in the above command to the hostname of the HTPC: ssh -L 10001:kermit:80 in natural language, this would say Again, since I haven’t got a forward up and running from my ADSL modem to my HTPC, I have to use an SSH tunnel. Now what if we change ‘localhost’ to something else? For example, I sometimes want to access the MythWeb web interface of my HTPC when I’m not at home. To close the tunnel, just log out from the remote host as you normally would when closing the SSH connection. The above command does just that and when it’s up and running I can type in my browser, which will access port 3689 on my server. And since I haven’t forwarded the 3689 port in my ADSL modem, I have to use an SSH tunnel to access it. Start a tunnel from here (where we write the command) on port 10001, then go to as user fredrik and end the tunnel at a host called localhost on port 3689 over there.Įvery now and then I use the above command to access the Firefly (mt-daapd) web interface running on my server from my laptop when I’m not at home. Since in this case we want the tunnel to end at the same host as we logged in to using the base ssh command, we use ‘localhost’. It refers to the host at the remote side which we want to act as the other end of our tunnel. the machine you’re writing that command on (like the command would say “connect from 10001 on localhost to 3689 on ), but no. Where did that localhost come from? Intuitively you could think that it refers to the local host, i.e. The base command is ssh since I want to set up a tunnel from, say, port 10001 on the local host to port 3689 on the remote host, I need to throw in the -L switch: ssh -L 10001:localhost:3689 is where the confusion sets in. Say that I’d like to open up a tunnel from the local machine to. Now, the basic idea is that you issue a normal ssh command to the remote host as if you would open a remote shell, and just throw in the -L switch to instruct ssh to forward a separate port at the same time.
#Tunel manager ssh how to#
So here’s a note to self on how to do this once and for all. After a few trials and errors I usually get my SSH tunnel up and running, but most of the time I’m not quite sure what I’ve really done. What? Which port goes where? And what’s the bind_address and hostport? If you read the explanation of the switch you’ll probably just become even more confused. The ssh man page is especially unhelpful: -L port:host:hostport Each time, however, I end up reading the man page for the ssh command or googling for ‘ssh tunnel linux’ or something similar, since I never seem to remember how to set up a simple SSH tunnel on the command line. Every once in a while I need to set up a temporary SSH tunnel from one computer to another, possibly via a third one, and can’t be bothered with configuring any of my otherwise frequently used GUI tools ‘SSH Tunnel Manager’ for OS X or ‘SSH Tunnel’ on Win XP.
![Tunel manager ssh](https://kumkoniak.com/79.jpg)