Host intrusion detection and isolation

摘要

A host computer system having at least one network interface interfaced with a computer network is operated in a multi-user mode. An intrusion event is detected using a system daemon. In response to detecting the intrusion event, the at least one network interface is isolated from the computer network and the host computer system taken down to a single user state so that access to the host computer system is limited to physical access at the host computer system.