Linux commands – brygger.dk

Secure Your Connections: A Guide to SSH Keypair Creation and Deployment on Linux

In the world of system administration and remote server management, security is paramount. While password-based authentication for SSH is common, it’s far from the most secure method. Enter SSH keypairs: a robust, cryptographic way to authenticate yourself to a remote server, offering significantly enhanced security and convenience.

Mastering Services on Alpine Linux: A Concise Guide

Alpine Linux is renowned for its minimalist design, small footprint, and robust security. It’s an excellent choice for containers, embedded systems, and even lightweight servers. However, if you’re coming from a systemd-centric distribution like Ubuntu or Fedora, managing services on Alpine might feel a little different at first.

Fortifying Your Linux Servers: A Guide to Disabling SSH Root Login

One of the foundational steps in securing any Linux server is to disable direct SSH root login. While convenient for quick administrative tasks, allowing root to log in directly via SSH is a significant security risk. A compromised password or a brute-force attack against the root user could grant an attacker complete control over your system.

How to Install Alpine Linux: A Step-by-Step Guide

Alpine Linux has gained significant popularity in recent years, especially among developers and system administrators looking for a lightweight, secure, and resource-efficient operating system. Its small footprint makes it an excellent choice for containers, embedded systems, and even as a minimalist desktop.

DNF: Your Go-To Package Manager for Fedora and Beyond

If you’re a Linux user, especially one traversing the landscapes of Fedora, CentOS, or Red Hat Enterprise Linux (RHEL), you’ve undoubtedly encountered dnf. For many, it’s the invisible hand that keeps their system updated and their software in order. But dnf is far more than just an “update button.” It’s a powerful and versatile package manager that, once mastered, becomes an invaluable tool in your Linux arsenal.