Kali Linux is an open-source, Debian-based Linux distribution geared towards various information security tasks, such as Penetration Testing, Security Research, Computer Forensics and Reverse Engineering.
You can take any Linux and install pentesting tools on it, but you have to set the tools up manually and configure them. Kali is optimized to reduce the amount of work, so a professional can just sit down and go.
Whether you are a seasoned veteran or a novice, our documentation will have all the information you will need to know about Kali Linux. Multiple tips and “recipes” are available, to help ease doubts or address any issues. All documentation is open, so you can easily contribute.