How to Linux
Foundational Linux skills for running a server: the command line, SSH, users and permissions, packages, services, and files.
4 guides in this section.
How to Set Up a Firewall with UFW on Ubuntu and DebianHow to configure the UFW firewall on Ubuntu or Debian: allow SSH and your services, enable the firewall, check its...
Initial Server Setup with Ubuntu on a Noiz VPSThe first things to do on a new Noiz VPS running Ubuntu: update the system, create a non-root sudo user, set up SSH...
How to Set Up SSH Key-Based Authentication on a Linux ServerHow to log in to a Linux server with SSH keys instead of a password: generate a key pair, install the public key on...
Where SSH Keys Are Stored in LinuxWhere SSH keys live on a Linux system: your own keys in ~/.ssh, the server's authorized_keys and known_hosts, the...