1/12/2024 0 Comments Remote ssh anywhere![]() ![]() For example, if your media server is located at port 192.168.1.123 on your home network, you could plug the address 192.168.1.123 into any application using the SOCKS proxy and you'd access the media server as if you were on your home network. You could set up dynamic port forwarding, configure a web browser to use the SOCKS proxy, and then access servers running on your home network through the web browser as if you were sitting in front of your SSH system at home. You don't allow incoming connections from the Internet to your media server application. For security reasons, you may only have an SSH server exposed to the Internet. This also means you could use this trick to access US-only websites while outside of the USA-assuming you have access to an SSH server in the USA, of course.Īs an another example, you may want to access a media server application you have on your home network. From the perspective of any websites you visit, it will be as if you were sitting in front of your PC at home. No one monitoring the public Wi-Fi network will be able to monitor your browsing or censor the websites you can access. All traffic sent to that proxy will be sent over the SSH server connection. The SSH client will create a SOCKS proxy on your PC. If you have access to an SSH server at home, you could connect to it and use dynamic port forwarding. You want to browse securely without being snooped on. Related: Why Using a Public Wi-Fi Network Can Be Dangerous, Even When Accessing Encrypted Websitesįor example, let's say you're using a public Wi-Fi network. This is similar to local forwarding-it takes local traffic sent to a specific port on your PC and sends it over the SSH connection to a remote location. All the traffic sent through the proxy would be sent through the SSH server. The SSH client will create a SOCKS proxy you can configure applications to use. There's also "dynamic port forwarding", which works similarly to a proxy or VPN. Related: What's the Difference Between a VPN and a Proxy? In that case, your command would look like this:ĭynamic Port Forwarding: Use Your SSH Server as a Proxy You have access to the office's SSH server at, and your user account on the SSH server is bob. Ssh -L local_port:remote_address:remote_port example, let's say the database server at your office is located at 192.168.1.111 on the office network. To use local forwarding, connect to the SSH server normally, but also supply the -L You can use any command line or graphical tool to access the database server as if it was running on your local PC. The SSH server sits in the middle, forwarding traffic back and forth. So, when you attempt to access the database server at port 1234 your current PC, "localhost", that traffic is automatically "tunneled" over the SSH connection and sent to the database server. To do this, you establish an SSH connection with the SSH server and tell the client to forward traffic from a specific port from your local PC-for example, port 1234-to the address of the database's server and its port on the office network. This is often the case, as it's easier to secure a single SSH server against attacks than to secure a variety of different network resources. But if you have access to an SSH server at the office, and that SSH server allows connections from outside the office network, then you can connect to that SSH server from home and access the database server as if you were in the office. ![]() For security reasons, that database server is only configured to accept connections from the local office network. ![]() For example, let's say you want to access a database server at your office from your home. "Local port forwarding" allows you to access local network resources that aren't exposed to the Internet. Local Port Forwarding: Make Remote Resources Accessible on Your Local System On Windows, which doesn't include a built-in ssh command, we recommend the free tool PuTTY to connect to SSH servers. You can do this with the ssh command included on Linux, macOS, and other UNIX-like operating systems, and you can create an ssh config file to save your settings. ![]()
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