Abstract: A method of the present invention includes a network security system that has a single point of access control to a source computer system. The network security system provides various mechanisms for securing access to a source computer systems that includes generating single-use encryption keys, generating random port assignments for communication between devices, an asynchronous message protocol used in the security system and utilizing various levels of transaction tables to help secure and manage security parameters of the system. More particularly, the present invention provides a method for securing access to a plurality of computers connected via a network. An indication is received that a first user of a first computer program module desires to communicate with a destination computer system. When this indication is received, a message is directed to a security computer system.

Abstract: Generally, the present invention is a method for identifying whether time-based operations of a computer system operate properly for time intervals over which the computer system operates. Specifically, the present invention is operative to identify the type of failure that occurs. The present invention utilizes test programs and test procedures to determine whether the hardware, BIOS, operating system, and computer language handle time and date calculations correctly. The present invention may identify a time period to be evaluated and divide the time period into a plurality of time intervals. This process accepts a first frequency value that specifies the frequency at which time test modules are to execute the time-based operations of the computer system. A first set of time-based test modules are executed at the frequency specified by the first frequency value in a first time interval.