Lynda.com is now LinkedIn Learning!

To access Lynda.com courses again, please join LinkedIn Learning

All the same Lynda.com content you know and love

Plus, personalized course recommendations tailored just for you

Get LinkedIn Premium features to contact recruiters or stand out for jobs

Try LinkedIn Learning for free
Questions? Visit our help center.
Skip navigation

Understanding firewalls

Understanding firewalls: Linux Foundation Cert Prep: Network Security (Ubuntu)
Understanding firewalls: Linux Foundation Cert Prep: Network Security (Ubuntu)

Firewalls help to protect systems against unwanted network access. Explore how they work and when to use one.

Resume Transcript Auto-Scroll
Skill Level Intermediate
43m 46s
Duration
9,985
Views
Show More Show Less
Skills covered in this course
Network Administration IT Operating Systems Linux

Continue Assessment

You started this assessment previously and didn't complete it. You can pick up where you left off, or start over.

Start My Free Month

Start your free month on LinkedIn Learning, which now features 100% of Lynda.com courses. Develop in-demand skills with access to thousands of expert-led courses on business, tech and creative topics.

Start My Free Month

You are now leaving Lynda.com and will be automatically redirected to LinkedIn Learning to start your free trial.