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  2. Firewall (computing) - Wikipedia

    en.wikipedia.org/wiki/Firewall_(computing)

    Firewall (computing) In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. [1] [2] A firewall typically establishes a barrier between a trusted network and an untrusted network, such as the Internet. [3]

  3. Web application firewall - Wikipedia

    en.wikipedia.org/wiki/Web_application_firewall

    A web application firewall ( WAF) is a specific form of application firewall that filters, monitors, and blocks HTTP traffic to and from a web service. By inspecting HTTP traffic, it can prevent attacks exploiting a web application's known vulnerabilities, such as SQL injection, cross-site scripting (XSS), file inclusion, and improper system ...

  4. Application firewall - Wikipedia

    en.wikipedia.org/wiki/Application_firewall

    Application firewall. An application firewall is a form of firewall that controls input/output or system calls of an application or service. It operates by monitoring and blocking communications based on a configured policy, generally with predefined rule sets to choose from. The two primary categories of application firewalls are network-based ...

  5. Firewall (construction) - Wikipedia

    en.wikipedia.org/wiki/Firewall_(construction)

    Firewall residential construction, separating the building into two separate residential units, and fire areas Example of a firewall used to inhibit the spread of a fire at an electrical substation. A firewall is a fire-resistant barrier used to prevent the spread of fire. Firewalls are built between or through buildings, structures, or ...

  6. Windows Firewall - Wikipedia

    en.wikipedia.org/wiki/Windows_Firewall

    Windows Firewall (officially called Microsoft Defender Firewall in Windows 10 version 2004 and later) is a firewall component of Microsoft Windows. It was first included in Windows XP SP2 and Windows Server 2003 SP1. Before the release of Windows XP Service Pack 2, it was known as the " Internet Connection Firewall ."

  7. Personal firewall - Wikipedia

    en.wikipedia.org/wiki/Personal_firewall

    Personal firewall. A personal firewall is an application which controls network traffic to and from a computer, permitting or denying communications based on a security policy. [ 1] Typically it works as an application layer firewall . A personal firewall differs from a conventional firewall in terms of scale.

  8. Distributed firewall - Wikipedia

    en.wikipedia.org/wiki/Distributed_firewall

    A distributed firewall is a security application on a host machine of a network that protects the servers and user machines of its enterprise's networks against unwanted intrusion. A firewall is a system or group of systems ( router, proxy, or gateway) that implements a set of security rules to enforce access control between two networks to ...

  9. Internet security - Wikipedia

    en.wikipedia.org/wiki/Internet_security

    Internet security. Internet security is a branch of computer security. It encompasses the Internet, browser security, web site security, [ 1] and network security as it applies to other applications or operating systems as a whole. Its objective is to establish rules and measures to use against attacks over the Internet. [ 2]

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