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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. DMZ (computing) - Wikipedia

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

   DMZ (computing) In computer security, a DMZ or demilitarized zone (sometimes referred to as a perimeter network or screened subnet) is a physical or logical subnetwork that contains and exposes an organization's external-facing services to an untrusted, usually larger, network such as the Internet. The purpose of a DMZ is to add an additional ...

4. Proxy server - Wikipedia

   en.wikipedia.org/wiki/Proxy_server

   Proxy server. Communication between two computers connected through a third computer acting as a proxy server. This can protect Alice's privacy, as Bob only knows about the proxy and cannot identify or contact Alice directly. In computer networking, a proxy server is a server application that acts as an intermediary between a client requesting ...

5. Personal firewall - Wikipedia

   en.wikipedia.org/wiki/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. A personal firewall will usually protect only the ...

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. Tunneling protocol - Wikipedia

   en.wikipedia.org/wiki/Tunneling_protocol

   t. e. In computer networks, a tunneling protocol is a communication protocol which allows for the movement of data from one network to another. It can, for example, allow private network communications to be sent across a public network (such as the Internet), or for one network protocol to be carried over an incompatible network, through a ...