The first requires two firewalls, with bastion hosts sitting between the first "outside world" firewall, and an inside firewall, : 33 in a DMZ. There are two common network configurations that include bastion hosts and their placement. Due to their exposure, a great deal of effort must be put into designing and configuring bastion hosts to minimize the chances of penetration." Placement rock support tower of strength Compare Synonyms See also synonyms for: bastioned On this page you'll find 26 synonyms, antonyms, and words related to bastion, such as: bulwark, citadel, fortress, mainstay, stronghold, and breastwork. Other types of bastion hosts can include web, mail, DNS, and FTP servers. Firewalls and routers, anything that provides perimeter access control security can be considered bastion hosts. It has also been described as "any computer that is fully exposed to attack by being on the public side of the DMZ, unprotected by a firewall or filtering router. Generally, bastion hosts will have some degree of extra attention paid to their security, may undergo regular audits, and may have modified software". Ranum, who defined a bastion host as "a system identified by the firewall administrator as a critical strong point in the network security. The term is generally attributed to a 1990 article discussing firewalls by Marcus J.
These computers are also equipped with special networking interfaces to withstand high-bandwidth attacks through the internet. 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.
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. A bastion host is a special-purpose computer on a network specifically designed and configured to withstand attacks, so named by analogy to the military fortification.
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