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  1. #16
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    Jul 2018
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    In computing, a firewall is software or firmware that enforces a set of rules about what data packets will be allowed to enter or leave a network.

  2. #17
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    Dec 2017
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    In computing, 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.

  3. #18
    Junior Member
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    Jul 2018
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    In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.[1] A firewall typically establishes a barrier between a trusted internal network and untrusted external network, such as the Internet.[2]

    Firewalls are often categorized as either network firewalls or host-based firewalls. Network firewalls filter traffic between two or more networks and run on network hardware. Host-based firewalls run on host computers and control network traffic in and out of those machines.

    source: Wikipedia

  4. #19
    Junior Member
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    Sep 2018
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    network Security

  5. #20
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    Sep 2018
    Location
    Bangladesh
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    24
    A firewall is simply a program or hardware device that filters the information coming through the Internet connection into your private network or computer system. If an incoming packet of information is flagged by the filters, it is not allowed through.

  6. #21
    Junior Member
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    Aug 2018
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    20
    Firewall is a used to avoid unathorised access to or from your system. It helps prevent malware and malicious attacks from entering a computer or a network of computers through the Internet
    There are two types of firewall
    Hardware
    Software

  7. #22
    Registered User
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    Feb 2018
    Posts
    71
    A firewall is a network device that blocks specific forms of network traffic, setting a bulwark between trusted and untrusted networks. This provides a defense against most computer attacks, however, embarking upon a search for the perfect firewall can be convoluted and confusing.

  8. #23
    Registered User
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    Nov 2018
    Location
    India
    Posts
    11
    Simply to get understand I can defined a firewall is a software which used to maintain the security to a private network and controls all their incoming and outgoing traffic based on a pre-defined set of security rules.

  9. #24
    Registered User
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    Nov 2018
    Location
    India
    Posts
    11
    A firewall is software used to maintain the security of a private network and acts as a defense for a local computer against viruses, worms, Trojans and brute-force hacking attacks.

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