SSH (Secure shell) is a tool that allows you to remotely control another computer from your own.
On the client, you should run the following command:
ssh-keyring
This command is going to generate two files in your ~/.ssh directory: id_ed25519.pub and id_ed25519. This is your public/private key pair.
Generating public/private ed25519 key pair. Enter file in which to save the key (/home/user/.ssh/id_ed25519): Enter passphrase for "id_ed25519" (empty for no passphrase): Enter same passphrase again:
After it's done, you should see something like this:
Your identification has been saved in id_ed25519 Your public key has been saved in id_ed25519.pub The key fingerprint is: SHA256:A9XgEuUAq5PT+TydcezaAL2iZCAWkOZLSsYjnR1rct4 user@client The key's randomart image is: +--[ED25519 256]--+ |.. ..o.+o | |o. .. * . | |+o o.oo o | |.B=+=. + . | |B.O=o.. S o | |oo +.oEo B | | o = = . | | o . o + | | . . . | +----[SHA256]-----+