What is a Linux Distribution?
Linux is just the kernel (the core operating system engine). A Linux Distribution (or 'Distro') packages the kernel with a set of user applications, system utilities, and a desktop environment.
Common General-Purpose Distros
- Ubuntu: Very user-friendly, great for servers and desktops. Based on Debian.
- Fedora: Community-supported distribution sponsored by Red Hat. Known for bleeding-edge software.
- Debian: The foundation for many other distros (including Ubuntu and Kali). Known for stability.
Security-Focused Distros
These come pre-loaded with hundreds of security tools, saving significant setup time:
- Kali Linux (The OS of Choice): Derived from Debian, maintained by Offensive Security. The industry standard for penetration testing.
- Parrot OS: Based on Debian, often considered more resource-light than Kali, with strong focus on forensics and privacy.
Action Item: For this course, our primary offensive platform will be Kali Linux.