Authentication

Configure the minimum password length on Linux systems

One of the options to improve password security is by setting a minimum password length. This article explains how to configure and test this security step.

File Integrity of Password Files

Proper password management, together with file integrity of your password files, is important for security of your system and users.

Linux password security: hashing rounds

Password hashing rounds refers to the number of iterations a particular hashing algorithm has to perform. Learn why and how to configure this on Linux systems.

Password Security with Linux /etc/shadow file

Learn the structure of the /etc/shadow file and what the fields mean. After reading, the file should be less cryptic than it was before.

Unused Linux Users: Delete or Keep Them?

Got unused or unknown system accounts on your Linux system? This article explains the different strategies and actions to take and keep the system healthy.