By establishing one main connection, additional SSH sessions to the same host are nearly instant. Just configure your ~/.ssh/config file like the following: Host * ControlMaster auto ControlPath ...

but more information on the SSH authorized_keys file can be found at SSH Academy: Configuring authorized_keys for OpenSSH. Many other how to files are available through Google Search. Other remote ...

The command will move through a series of prompts. First, it will ask where you want to save the keys. Unless you are an expert, accept the default. This will create an “id_rsa” and an “id_rsa.pub” ...