Kali Linux (formerly known as BackTrack) is a Debian-based distribution with a collection of security and forensics tools.
https://www.virtualbox.org/ - oracle VM virtualbox
https://www.kali.org/downloads/ - official kali linux downloads
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![Kali Linux Basics: Beginner Guide + Essential Commands [35 Min]](https://i.ytimg.com/vi/AGVTX9HQp1M/hqdefault.jpg?sqp=-oaymwEcCNACELwBSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLBIRjT4CGQNg7YyUYS6shsTm-mwTQ)
