Guides about security
- Set up SSH keys for your server SSH keys replace passwords with a key pair that cannot be guessed. Create one, install it on your server and test it before you turn passwords off. Beginner 12 min
- How to secure a new Linux server in the first hour A new server is reachable from the internet the moment it boots. These steps close the most common gaps before you install anything else. Beginner 30 min