#Ssh tunnel using putty how to
#Ssh tunnel using putty software

So safely click continue, enter your VNC credentials and start using your encrypted VNC connection. That is why you entered “localhost” in the VNC viewer instead of the actual IP address of the Linux machine.

#Ssh tunnel using putty software

Worry not my friend this is normal because neither your VNC client software nor your VNC server knows that your traffic is being encrypted because all tunneling and encryption starts AFTER the data leaves the VNC Viewer software and ends BEFORE it hits the VNC server daemon running on your Linux server. OMG what is this ? Connection is unencrypted ? But didn’t you follow this whole thing to tunnel your VNC connection over SSH using PuTTY. If you are explicitly using the port number use two colons before it What is this isn’t the connection suppose to be encrypted. Once logged in minimize the PuTTY window and open your VNC viewer software and enter “localhost:5901” replace 5901 with the port number you entered in the SOURCE PORT field of PuTTY under SSH -> Tunnels. Thats it now click open, enter your credentials. Save the configuration so that you can do not have to enter the setiings each time Under “Saved Sessions” specify a name and click the save button. You will now see the setting under “Forwarded Ports”.Ĭome back to the “Session” page to save these settings as a session so that you do not need to enter them each time. Leave all the other radio buttons to their defaults and click the Add button. The source port can be any number, I am entering the same number just to avoid confusion. Hence I will be using port 5901 as the destination. Vncserver :1 -geometry 1366x768 -depth 24

I have configured a VNC session on my Linux server with the following command. Enter the Linux Server details in PuTTYįrom the Category section expand “SSH” and select “Tunnels”, enter both the source port as 5901 (any port number will do) and destination as :5901 eg. Leave the port number to 22 if you did not change the default SSH port number on the Linux Server. Open PuTTY and enter the IP address/Hostname of the Linux server. This article assumes that a VNC server software has already been installed on the target Linux computer and a VNC session has been created. First I will show you how this is done through the GUI and then by using command line parameters of PuTTY which are very similar to the “ssh” command in Linux. This is just an example of tunneling VNC traffic through PuTTY you can tunnel almost any traffic (eg HTTP, FTP) by changing port numbers.

#Ssh tunnel using putty how to

This article will show you how to use the popular terminal emulator PuTTY to create a SSH tunnel to pass VNC traffic which is normally unencrypted. Thank you so much! This post is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.The SSH protocol has a unique feature of tunneling other protocols and encrypting them. While the putty connection screens remains open you should be able to access the RabbitMQ management web server by calling in your favorite browser.Īs you can see the procedure is really simple and opens a lot of possibilities without having to open different ports on your remote server.īy the way, if you found a typo, please fork and edit this post. Of course you can always configure the putty screen to be a different color (if you know alternative tricks, please share 😉 ) If you also use putty to manage your remote server, you will not see the difference. The major drawback is that you cannot see the port forwarding from that screen. This will open a SSH connection with your remote server and at the same time the configured port forwarding.

If everything is correctly configured click Open.

We need to tell Putty to listen on a Source port (=local), and to forward it to the Destination (=remote).įor this example we will configure putty to forward port 1234 to the remote port 55672.įill in the ports as displayed in following screen and then click on Add: Assume we want to access the RabbitMQ management web server which runs on the port 55672. In this section we are going to configure the port forwarding. Once this is done, open the Tunnels section in the menu Connection -> SSH. In the Connection type section you should select SSH which will set the port automatically to 22. Open the Putty Configuration client, and fill in the field ‘ Host Name (or IP address)‘ with the IP or host name of your remote server. A simple SSH connection and Putty makes this possible: