Skill

File Permissions, macOS and Linux Firewalls

February 2024 with James Conrad

  • 6 videos
  • 14 hrs 28 mins
Join James Conrad as we learn how to manage file permissions on all three major operating systems. After tackling directory permissions, we'll spend time on macOS and Linux firewalls.

Recommended Experience
  • Basic understanding of operating systems
  • Basic familiarity with networking concepts and terminology
  • Introductory knowledge of command-line interfaces
Related certifications
  • Cisco Certified Support Technician (CCST) Cybersecurity
Related Job Functions
  • IT support technician
  • Network security specialist
  • Systems administrator
James got his start in IT by becoming the de facto IT professional for a nonprofit organization — and the rest was history. He has over three decades of IT experience.
Get started
James Conrad
James Conrad
Trainer

Skill Outline

  1. 1. Linux and macOS File and Directory Permissions (10:51)
  2. 2. Configure macOS Firewall (9:30)
  3. 3. macOS Firewall (0:00)
  4. 4. Configure Linux Firewall (9:10)

Quizzes & Practice Exams

Reinforce core concepts and new skills with built-in quiz questions, and exams.

Virtual Labs

Explore new technology and apply your expertise in customized virtual labs.

Free Flashcards

Flashcards help you reinforce what you’ve learned before exam day.

Learn this skill and so much more!

Get started

Gain instant access to our entire IT training library, free for your first week. Train anytime on your desktop, tablet, or mobile devices.

Not sure where to start?
Call 541-284-5522 or try our .

What is it like to train with us?

Our learners say it best.

Helps me learn the skills I need when I need them

THOMAS S. | SYSTEMS ENGINEER & CONSULTANT
Read Reviews
Get CBT Nuggets IT training news and resources

I have read and understood the privacy policy and am able to consent to it.

© 2026 CBT Nuggets. All rights reserved.Terms | Privacy Policy | Accessibility | | Sitemap | 2850 Crescent Avenue, Eugene, OR 97408 | 541-284-5522