LPI Certification / CompTIA Linux+ Practice Test

Answer - B - The /etc/shadow file is used to store user passwords on a Linux system that has been configured to use local authentication.

Key Takeaway: The /etc/passwd file contains the user account information for your system. The /etc/shadow file contains passwords for your user accounts. With most Linux distributions that use local authentication, user passwords will be stored in encrypted format in the /etc/shadow file. This file is linked to the /etc/passwd file we discussed previously. Each of the user accounts listed in /etc/passwd has a corresponding entry in /etc/shadow file.