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Thread: What is Firewall?

  1. #1

    Default What is Firewall?

    Hello Friends,

    Please tell me what is firewall.

  2. #2
    Join Date
    Jun 2013


    A firewall is a network security system designed to prevent unauthorized access to or from a private network. Firewalls can be implemented in both hardware and software, or a combination of both.
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  3. #3
    Join Date
    Aug 2017

  4. #4

    Default Firewall

    Firewall is a security system which protect the System from Intruders and hackers. Firewalls also safeguards the PC from offensive software that come to reside on the software to stole the user personal data.

    It is a software programs or hardware tool which notes and filters the traffic that flow into the PC through Internet connection. They block the files which are harmful to the system. There are set of rules to connect such as who to connect to the internet, what kind of connections can be made to the internet, what kind of files may be transferred. These Rules are can be set up by yourself or by administrators to allow traffic to their web servers, FTP and Telnet servers, thereby giving the computer owners/administrators control over the traffic that flows in & out of the systems.

  5. #5
    Join Date
    Apr 2016


    A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. A firewall typically establishes a barrier between a trusted internal network and untrusted external network, such as the Internet.

    Firewalls are often categorized as either network firewalls or host-based firewalls. Host-based firewalls run on host computers and control network traffic in and out of those machines.
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