How to crack passwords and break/recover user passwords 🛠️ Password cracking with John the Ripper | Linux Tutorial

How to use the John the Ripper tool to crack or recover the passwords of users of a Linux system. The program will use a predefined dictionary to compare all password hashes for user accounts and thus discover users' secret passwords. This process can be fast, take hours, or days, it depends on the complexity of the passwords that need to be broken, that is why you should use a passphrase instead of a password with letters, numbers and symbols, to make this process difficult or impossible for cyber criminals. As you can see in the tutorial, I will use the passwd and shadow file from a Linux system, and in a matter of seconds I will discover the passwords of 5 users.

John the Ripper is an open source tool for auditing and recovering passwords for operating systems. The program supports hundreds of hash types and encryption, including for: passwords for users of Linux, BSD, Solaris, AIX, QNX, macOS, Windows systems, as well as for web applications such as WordPress, groupware, SQL databases, LDAP, and also capture WPA-PSK WiFi network traffic, SSH encrypted private keys, GnuPG, cryptocurrency wallets. The process can also be applied to ZIP, RAR, 7z, or PDF and Microsoft Office documents, and many others.

Related content
Tutorials and Distro Reviews https://bit.ly/3odVU6G (playlist)
Manage access on a Linux system https://youtu.be/b1vTw9gPnLs
Security audit of a Linux system https://youtu.be/PyG-_oO3YoE
Cracking user passwords on a system https://youtu.be/6GhkY-_oC-w
Steganography to hide files within files https://youtu.be/YrknHWxVRLw
Check for open ports on a Linux system https://youtu.be/LU42fFdcFbQ