The Secure Shell — SSH — allows you to send secure, encrypted, communications between computers that is nearly impossible to crack. Here's how to use it in macOS.

Is it possible to configure SSH to listen for connections on both internal and external interfaces, using different ports? Jack Wallen says "yes." ...

The SSH tunnel will virtually connect port 2110 on our local machine to the POP3 port (110) on the remote server. Remember, for our example the SSH and email server are the same machine.

The connection is made exactly like it is with SSH. In fact, the only difference you will notice is the use of mosh instead of ssh.

I'm trying to set up my Mac so that I can connect to it remotely from a Windows box via SSH using a key pair, rather than logging in with a username/password. I've Googled the absolute shit out of ...

Connecting to FTP in the Finder In macOS's Finder you connect to an FTP server by using the Go->Connect to Server menu item in the Finder's menu bar at the top of the display.