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  2. Personal firewall - Wikipedia

    en.wikipedia.org/wiki/Personal_firewall

    Donald R. Woeltje Jr. and the concept he came up with was the installation of special software (firewall software) on every BudNET server, workstation, and perimeter security device. Indeed, every single Windows system on the BudNET network. This is a concept that is now commonly referred to as "personal firewall" software. So, while SSgt.

  3. Firewall (computing) - Wikipedia

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

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

  4. Comparison of firewalls - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_firewalls

    Barracuda Firewall Proprietary: Included Firewall Next Generation appliance Windows-based appliance embedded firewall distribution Cyberoam: Proprietary: Included Firewall Sophos appliance Windows-based appliance embedded firewall distribution D-Link: Proprietary: Included Firewall DFL Windows-based appliance embedded firewall distribution ...

  5. Computer network - Wikipedia

    en.wikipedia.org/wiki/Computer_network

    This is an image of a Firewall separating a private network from a public network. A firewall is a network device or software for controlling network security and access rules. Firewalls are inserted in connections between secure internal networks and potentially insecure external networks such as the Internet.

  6. Computer security - Wikipedia

    en.wikipedia.org/wiki/Computer_security

    An example of a physical security measure: a metal lock on the back of a personal computer to prevent hardware tampering. Computer security (also cybersecurity, digital security, or information technology (IT) security) is the protection of computer software, systems and networks from threats that can lead to unauthorized information disclosure, theft or damage to hardware, software, or data ...

  7. Virtual firewall - Wikipedia

    en.wikipedia.org/wiki/Virtual_firewall

    A hypervisor-mode virtual firewall resides in the virtual machine monitor or hypervisor where it is well positioned to capture VM activity including packet injections. The entire monitored VM and all its virtual hardware, software, services, memory and storage can be examined, as can changes in these [citation needed]. Further, since a ...

  8. Hardware security - Wikipedia

    en.wikipedia.org/wiki/Hardware_security

    One approach, referred to as "hardsec", uses FPGAs to implement non-Turing-machine security controls as a way of combining the security of hardware with the flexibility of software. [5] Hardware backdoors are backdoors in hardware. Conceptionally related, a hardware Trojan (HT) is a malicious modification of electronic system, particularly in ...

  9. 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 configuration. [1]

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