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2. DMZ (computing) - Wikipedia

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

   The first firewall (also called the "front-end" or "perimeter" [5] firewall) must be configured to allow traffic destined to the DMZ only. The second firewall (also called "back-end" or "internal" firewall) only allows traffic to the DMZ from the internal network. This setup is considered [4] more secure since two devices would need to be ...

3. Network enclave - Wikipedia

   en.wikipedia.org/wiki/Network_enclave

   A major difference between a DMZ or demilitarized zone and a network enclave is a DMZ allows inbound and outbound traffic access, where firewall boundaries are traversed. In an enclave, firewall boundaries are not traversed. Enclave protection tools can be used to provide protection within specific security domains.

4. 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 ...

5. Screened subnet - Wikipedia

   en.wikipedia.org/wiki/Screened_subnet

   In network security a screened subnet refers to the use of one or more logical screening routers as a firewall to define three separate subnets: an external router (sometimes called an access router), that separates the external network from a perimeter network, and an internal router (sometimes called a choke router) that separates the ...

6. Comparison of firewalls - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_firewalls

   security gateways Proprietary operating system Junos: SonicWall: Proprietary: Included on Dell appliance Proprietary operating system SonicOS. Based on the Linux kernel Barracuda Firewall Proprietary: Included Firewall Next Generation appliance Windows-based appliance embedded firewall distribution Cyberoam: Proprietary: Included Firewall ...

7. Personal firewall - Wikipedia

   en.wikipedia.org/wiki/Personal_firewall

   Improving the overall security of an operating system is commonly referred to as "OS Hardening." The member of the team that was charged with this was SSgt. 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.