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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 ...
A screened subnet is an essential concept for e-commerce or any entity that has a presence in the World Wide Web or is using electronic payment systems or other network services because of the prevalence of hackers, advanced persistent threats, computer worms, botnets, and other threats to networked information systems.
The term Science DMZ refers to a computer subnetwork that is structured to be secure, but without the performance limits that would otherwise result from passing data through a stateful firewall. [1][2] The Science DMZ is designed to handle high volume data transfers, typical with scientific and high-performance computing, by creating a special ...
Jump server. A jump server, jump host or jump box is a system on a network used to access and manage devices in a separate security zone. A jump server is a hardened and monitored device that spans two dissimilar security zones and provides a controlled means of access between them. The most common example is managing a host in a DMZ from ...
Dynamic Multipoint Virtual Private Network. Dynamic Multipoint Virtual Private Network (DMVPN)[1] is a dynamic tunneling form of a virtual private network (VPN) supported on Cisco IOS -based routers, and Huawei AR G3 routers, [2] and on Unix -like operating systems.
Network address translation. Network address translation (NAT) is a method of mapping an IP address space into another by modifying network address information in the IP header of packets while they are in transit across a traffic routing device. [1] The technique was originally used to bypass the need to assign a new address to every host when ...
The Cisco Catalyst 4500 Series is a mid-range modular chassis network switch. The system comprises a chassis, power supplies, one or two supervisors, line cards and service modules. The Series includes the E-Series chassis and the Classic chassis which is manufactured in four sizes: ten-, seven-, six-, and three-slot.
Network Enclaves consist of standalone assets that do not interact with other information systems or networks. 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.
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