Welcome to "Intermediate administration," the third of four tutorials designed to prepare you for the Linux Professional Institute's 101 (release 2) exam. *This tutorial* (Part 3) is ideal for those who want to improve their knowledge of fundamental Linux administration skills. It covers a variety of topics, including system and Internet documentation, the Linux permissions model, user account management, and login environment tuning. Even for those not preparing for the certification exam, this tutorial is useful for experienced Linux users who want to round out their foundational Linux system administration skills.