Lec-85: What is Firewalls and How it Works | Packet Filtering firewall explained in Hindi Part-1

Varun sir explains What is Firewalls and How it Works is described in this video.

A Firewall is a network security device that monitors and filters incoming and outgoing network traffic based on an organization's previously established security policies.

Firewalls(Network Security)
1) Monitors and controls Incoming and outgoing traffic based on predefined rules.
2) Acts like a barrier.
3) Host based and Network based firewall.

0:00 - Firewall
5:05 - Packet Filtering Firewall

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