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.
Join this channel to get access to perks:
https://www.youtube.com/channel/UCJQJ4GjTiq5lmn8czf8oo0Q/join
Browse the internet in privacy.
Get the VPN that I use (affiliate). https://nordvpn.com/powercert
Use coupon code 'powercert' and get 68% off a 2-year plan + 1 month free.
