![]() Step 3 : Click the “SSH” on the left hand side under “Connections” and make sure that the “Preferred SSH protocol version” is set to 2. Leave the port as the default 22 and give the connection a name under “Saved Sessions” and click “Save”(my example uses a Linux box on the local network) : Step 2 : Open up PuTTY and put in the host IP address or domain name. PuTTY is a good ssh client for Windows and it is free: If your client is a Windows box, you have to install an ssh client. Look at the Firefox setup below as an example (Step 7). Ssh –D port_number example: ssh –D 8080 then the only thing that is left is to configure your application to use SOCKS. All you have to do is connect to the remote host with the following command: If your client is a Linux box, you hardly have to set up anything. If you plan on using a computer on your home network as the remote ssh host, do not forget to set up the port forwarding on your router accordingly. ![]() If you are still running the original firmware that you router came with, you are only using a fraction of the hardware’s capabilities and you are missing out on a lot of great features. You need to run open source software on it, like OpenWRT, DD-WRT, Tomato, etc. In this respect any Linux box is ideal for that purpose.įrom a practical standpoint, your home router is probably one of the best candidates for being your remote host. Any computer or device can be the remote host as long as it runs ssh. Now let’s see how it is done.Ī remote host is needed that will receive and process the requests from the client. By using Dynamic Port Forwarding over SSH, we channel http traffic through a different port and furthermore all http requests/responses are encrypted via ssh and thus cannot be examined or filtered. In most cases, surf control is implemented by monitoring the traffic and examining the tcp/ip packets over port 80. A good example here is circumventing surf control restrictions. Second, if you need to bypass local network restrictions and monitoring services. First, if you are on a public, non secure, non trusted, unencrypted network (for example at the local coffee shop) you can use this method to securely connect to a remote host and have your network traffic encrypted and thus protect your data and privacy. Why would anyone need this? Two main reasons immediately come to mind. ![]() This is very similar to a simple proxy, with the exception that in a proxy set up the application sends data directly to the remote host, while in this configuration we have an emulated local SOCKS server that handles the requests first and then directs them to the remote computer… oh yeah… and the network traffic is encrypted.ĭynamic Port Forwarding over SSH is in a way a simple alternative to VPN. This method allows an application on a client computer to make request to a local port, then the requests are forwarded to a remote host, which processes the requests and returns the data back to the client. Dynamic Port Forwarding with SOCKS over SSH JanuPosted by Tournas Dimitrios in Linux.ĭynamic Port Forwarding with SOCKS over SSH is probably the easiest and cheapest secure method to connect a client application to a remote host over a preferred port.
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