![]() Note that you're connecting to a VNC port on your local machine, which appears to be on your remote machine, and note also that on the remote machine, your firewall rules may need amending to allow local traffic on the port advertised by the VNC server, but there is no need to ensure that your network card interface allows traffic on that port, because it is being tunneled over port 22 (your ssh connection). In other words, using VNC with SSH port forwarding makes a port from one PC appear on another PC through a SSH connection, providing a secure path for the VNC traffic. Now open your VNC Windows application and ask it to connect to 127.0.0.1:5021 - and it will use the tunnel that you've set up. SSH tunneling creates a SSH tunnel to encapsulate unencrypted traffic (the payload protocol), such as VNC, over an encrypted SSH channel (the delivery protocol). You can combine WinVNC and an SSH port forwarding client/server pair, such as Bitvise SSH Client. Open the session and log in on your linux server. VNC is a free client/server system which allows you to view a computing 'desktop' environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. then launch your vnc instance with: vncserver. vnc4server can be installed on your server with: sudo apt-get install vnc4server. This question was answered by sierracircle: correct. Save the Putty session using a handy nickname. The script just makes an SSH tunnel for the VNC session and then opens the. On this options page, configure the local (source) port as 127.0.0.1:5021 and the remote port as the hostname or IP address of your server, and the remote port that your vncserver on the linux host is listening on. I leave this ssh session running while VNC is running so that the tunnel stays up.īefore the Putty connection is opened, while you are configuring it, you will find a menu item under the Category list on the left hand side of the Putty client configuration options called "Connection" with a sub-menu item called "ssh" and under this, a further sub-menu item called "Tunnels". ![]() At that point person B on Machine B could VNC back to machine A and help. This ssh tunnel works in this way: when a packet goes to port 1111 on localhost, this packet is forwarded to sshd running on the vncserver, then the sshd running on the vncserver forwards this packet to localhost:5901 that is the port 5901 on itself (vncserver). Before connecting with VNC, I use a Putty client ( ) to create an SSH connection from my Windows laptop to the remote linux server, and set up the tunnel using this. ssh server (optional win10 add on) tightvnc client The idea would be Person A on machine A starts the VNC server on machine A, and connects over reverse ssh to machine B (so far so good). ssh -L 1111:localhost:5901 usernamevncserver.
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