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// firewall

what is firewall ?

A firewall is a network security tool that keeps track of and filters incoming and outgoing network traffic in accordance with previously specified security policies for an organization.

A firewall is essentially the barrier that stands between a private internal network and the open Internet at its most basic level. The basic function of a firewall is to let safe traffic in while blocking harmful traffic.

What is the Use of firewall?

A hardware firewall examines the security of the data entering your system from different areas of the internet. Each data packet is examined by hardware firewalls that employ packet filtering to determine its origin and destination.
The information the firewall gathers about each packet is then checked to see if it fits the description of data that should be ignored. They can implement policies to more effectively protect your network and do rapid analyses to find intrusive or dubious activities, like malware, and stop it.

Types Of Firewalls

01
Stateful inspection

Active connections are monitored by dynamic packet filtering, which chooses which network packets to let pass through the firewall.

02
Proxy service

System for network security that defends while application-layer message filtering.

03
Packet filtering

A little amount of data is examined and dispersed in accordance with the standards of the filter.

04
Next Generation Firewall (NGFW)

In-depth packet analysis Application-level firewall monitoring.