If you're running a VPS, locking down SSH access is a must. Using passwords alone isn't safe anymore. Let's walk through how to set up SSH key-based authentication on Linux, Windows, and Mac — and sprinkle in some fun facts, pro tips, and gotchas to watch for. Open your terminal and run: ssh-keygen -t rsa -b 4096 -C "[email protected]". It will ask: "Enter file in which to save the key" …

Linux is a Unix-like operating system developed by Linus Torvalds to create an open-source OS that anyone could modify. It comes in two main distro families: Debian-based (like Ubuntu and Kali), known for stability and ease of use, and Arch-based (like Arch and Manjaro), which prioritize customizability and cutting-edge updates. To understand Linux better, we should first look at Unix, the foundational OS developed by AT&T at Bell Labs. Unix …