Bastion host

Special purpose computer on network / From Wikipedia, the free encyclopedia

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A bastion host is a special-purpose computer on a network specifically designed and configured to withstand attacks, so named by analogy to the bastion, a military fortification. The computer generally hosts a single application or process, for example, a proxy server or load balancer, and all other services are removed or limited to reduce the threat to the computer. It is hardened in this manner primarily due to its location and purpose, which is either on the outside of a firewall or inside of a demilitarized zone (DMZ) and usually involves access from untrusted networks or computers. These computers are also equipped with special networking interfaces to withstand high-bandwidth attacks through the internet.