What Is Firewall | Types Of Firewalls

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A Firewall protects computers that are stand-alone or a part of a LAN against outside intrusion.

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Firewalls work as filters between the outside world and the private network.

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A Firewall approves some traffic and blocks unauthorized users who attempt to access a network.

A Firewall could be either a piece of hardware, software, and a network.

Types Of Firewalls

Packet Filters:-

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Packet Filters Firewall examines all the packets it comes across. It forwards them or drops them based on pre-defined rules. This Firewall only provides only basic protection.

Proxy Firewall:-

A Proxy Server also is known as a gateway, acting as a middleman that relays data between the network and the outside world. The Proxy prevents outsiders from gathering information.

Benefits of Firewall

• Protection from services which are more prone to attack.
• Access to host in the network can be strict can be controlled.
• Logging and statistics of network use and miss use.
• Policy enforcement.

                                         

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