What is a Firewall? Easy Understand it! 2021

What is a Firewall?

This is an animated video explaining what a network firewall is.

A firewall is a system that is designed to prevent unauthorized access from entering a private network by filtering the information that comes in from the internet.

A firewall blocks unwanted traffic and permits wanted traffic.

https://www.cisco.com/c/en/us/products/security/firewalls/what-is-a-firewall.html

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