1. Changing Passwords:

   • Command: passwd [username]

   • Example: sudo passwd john

2. Password Policies:

   • Configure password policies in /etc/login.defs and /etc/security/pwquality.conf.

Summary

Mastering user and permission management is crucial for securing Linux systems. By effectively managing users, groups, and file permissions, you ensure that only authorized users have access to the appropriate resources. In the next lesson, we will explore Linux shell scripting to automate tasks and enhance productivity.