If you regularly ssh onto more than one remote machine, setting up a config file can make your life a bit easier. It’s also surprisingly easy to get set up. First, navigate to your ~/.ssh directory and take a look at what’s in there. You may not have much, or it might have SSH keys, or even directories with SSH keys inside of them. Do you see a file called config? If not, create it. In the file, you can create entries for your...