Patent ID: 8429219
Filing Date: 2013-04-23
Classification: H04L

Abstract:
1. A method for self-cleansing a server processing unit connected to a network, comprising, iteratively, without the need to rely on successful detection of a problem: providing information to the network by the server processing unit via plural communication channels; sending a reset signal through a first unidirectional interface located at a controller and a second unidirectional interface located at the server processor unit to a reset unit of the server processing unit after a specified amount of time, the first unidirectional interface including a first non-programmable hardware enforced security component, the second unidirectional interface including a second non-programmable hardware enforced security component, the reset unit being connected only to a unidirectional communication channel of the controller and being isolated from the plural communication channels; turning on a switch that causes the server processor unit to interrupt the plural communication channels between the server processor unit and the network; connecting the server processor unit to a storage unit via a bidirectional path only when the switch is turned on; and rebooting the server processor unit when the reset signal is received by the reset unit.