It connects port 61000 on the local machine to port 5901 on the server via an SSH tunnel. New ‘vnc_server:1 (username)’ desktop is vnc_server:1ġ means this is the first desktop. The following command must be run on the client computer from which you are connecting to the VNC server. This sets up an encrypted tunnel from your local machines port 5959 that magically comes out on port 5900 at 1.2.3.4. If it successes, it will give a message like this: If the IP address of your VNC server is 1.2.3.4 (and running on the standard port), you might execute: ssh -L 5959:127.0.0.1:5900 user1.2.3.4. If you haven’t set the vnc password, use “vncpasswd” to set it first. You can combine WinVNC and an SSH port forwarding client/server pair, such as Bitvise SSH Client. So port 1111 of localhost can be regarded as the port 5901 on vnc_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. The response packet follows the opposite of the path. The command is like this: ssh -L 1111:localhost:5901 ssh tunnel works in this way: when a packet goes to port 1111 on localhost, this packet is forwarded to sshd running on the vnc_server, then the sshd running on the vnc_server forwards this packet to localhost:5901 that is the port 5901 on itself (vnc_server). We need to forward port 1111 on locahost to 5901 of the remote server. Suppose we use port 1111 on localhost for the remote control and the remote vnc server is the first one so the default port is 5901 on the server. 1) Connect to the server and meantime set up the port forwarding ssh tunnel By default the firewall is turned on and ssh is blocked. At that point person B on Machine B could VNC back to machine A and help. First SSH into the remote system configure the VNC session and start VNC server Run the command vncpasswd to create a VNC session password. It assumes a VNC server has been installed on the remote system. Ssh’s port forwarding function give us the convenient way to do this. The client systems must also allow an ssh connection as we will use a ssh tunnel to secure the VNC communication. 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). This example is one method of setting up a secure VNC session tunneling over SSH. The default window manager of vncserver is twm. If you are connecting to an IRC Linux server from outside the building, you will need to tunnel your VNC connection through SSH.
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