Bastion host
From Freepedia
A bastion host is a network entity that provides a single entrance / exit point to the Internet.
Bastion hosts are used to prevent cracking of a network by providing a barrier between private and public areas.
Typically a bastion host will be configured with a firewall and provide services like web servers, DNS servers and mail servers. It may also include "victim hosts".
See also: demilitarized zone
