You'll see the first SSH login on a VPS: the question about the server's fingerprint, the invisible password and how to log out again.
Read the lesson: 1.3 The first SSH login
Films
VPS and Linux server administration in short films
Short animations and screen recordings to go with the lessons.
1
Your first server
2
SSH and keys
You'll see how to create an SSH key with ssh-keygen, put it on your server with ssh-copy-id and then log in without a server password.
Read the lesson: 2.1 Creating and using SSH keys5
Shielding the network
You'll see how to set up a firewall with ufw: first allow SSH, then ports 80 and 443, turn on the firewall and check the rules.
Read the lesson: 5.2 A firewall with ufw and nftables8
Backups and monitoring
You'll see how to use restic to make an encrypted backup to another server, view the snapshots and restore a single file.
Read the lesson: 8.2 Backups with restic