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What is Firewall?

What is Firewall?

By Prempal Singh 0 Comment December 18, 2018

A firewall is a filter that protects your computer from unauthorized intrusions and ensures the security of using the Internet.

Firewall is a software product or software and hardware complex that controls network packets or installed programs. Needed to protect the system from computer attacks. A firewall can also be called a, firewall, or firewall.

On computers with modern operating systems comes as embedded software. Also, the firewall may be included in the paid anti-virus systems. On the phones, by default, there is no firewall and it needs to be installed by regular means.

Software implementations for Windows – built-in firewall (can be opened in the control panel or from the Network and sharing center), individual programs, antivirus systems with a network screen included in the composition. On Linux, most often, it is introduced into the kernel of Netfilter, which is managed using various utilities, for example, ip tables or firewall. For BSD, ipfirewall, which is controlled by ipfw.

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