Abstract: An assurance system for creating and evaluating a plurality of virtual application environments that emulate and evaluate a plurality of target systems. Information such as network configuration, interface information, and software packages or subsystems are imported into the virtual application environments. The assurance system may be used for purposes of testing, and delivering comprehensive reports of the likely results on the target systems based on results from the virtual application environments, including such things as configuration changes to the environments, environment load and stress conditions, environment security, software installation to the environments, and performance levels of the environments among other things.

Abstract: An assurance system for evaluating a target application environment using a mixed environment including a virtual environment and the target environment. The assurance system emulates and evaluates the target environment. Information such as network configuration, interface information, and software packages or subsystems are imported into the virtual application environment. The assurance system may be used for purposes of testing, and delivering comprehensive reports of the likely results on the target system based on a comparison of the virtual application environment to the target environment, including such things as configuration changes to the environment, environment load and stress conditions, environment security, software installation to the environment, and environment performance levels among other things.

Abstract: An assurance system for testing the functionality of a computer system by creating an overlay of the computer system and routing selected traffic to the overlay while assessing the performance of the system. The system may be used for purposes of managing the testing of the computer system and delivery of comprehensive reports of the likely results on the computer system based on results generated by the assurance system, including such things as configuration changes to the environment, environment load and stress conditions, environment security, software installation to the environment, and environment performance levels among other things.

Abstract: An assurance system for creating and evaluating a virtual application environment that emulates and evaluates a target system. Information such as network configuration, interface information, and software packages or subsystems are imported into the virtual application environment. The assurance system may be used for purposes of testing, and delivering comprehensive reports of the likely results on the target system based on results from the virtual application environment, including such things as configuration changes to the environment, environment load and stress conditions, environment security, software installation to the environment, and environment performance levels among other things.

Abstract: A system for screening data packets transmitted between a network to be protected, such as a private network, and another network, such as a public network. The system includes a dedicated computer with multiple (specifically, three) types of network ports: one connected to each of the private and public networks, and one connected to a proxy network that contains a predetermined number of the hosts and services, some of which may mirror a subset of those found on the private network. The proxy network is isolated from the private network, so it cannot be used as a jumping off point for intruders. Packets received at the screen (either into or out of a host in the private network) are filtered based upon their contents, state information and other criteria, including their source and destination, and actions are taken by the screen depending upon the determination of the filtering phase. The packets may be allowed through, with or without alteration of their data, IP (internet protocol) address, etc.

Abstract: A system for screening data packets transmitted between a network to be protected, such as a private network, and another network, such as a public network. The system includes a dedicated computer with multiple (specifically, three) types of network ports: one connected to each of the private and public networks, and one connected to a proxy network that contains a predetermined number of the hosts and services, some of which may mirror a subset of those found on the private network. The proxy network is isolated from the private network, so it cannot be used as a jumping off point for intruders. Packets received at the screen (either into or out of a host in the private network) are filtered based upon their contents, state information and other criteria, including their source and destination, and actions are taken by the screen depending upon the determination of the filtering phase. The packets may be allowed through, with or without alteration of their data, IP (internet protocol) address, etc.

Abstract: A system for screening data packets transmitted between a network to be protected, such as a private network, and another network, such as a public network. The system includes a dedicated computer with multiple (specifically, three) types of network ports: one connected to each of the private and public networks, and one connected to a proxy network that contains a predetermined number of the hosts and services, some of which may mirror a subset of those found on the private network. The proxy network is isolated from the private network, so it cannot be used as a jumping off point for intruders. Packets received at the screen (either into or out of a host in the private network) are filtered based upon their contents, state information and other criteria, including their source and destination, and actions are taken by the screen depending upon the determination of the filtering phase. The packets may be allowed through, with or without alteration of their data, IP (internet protocol) address, etc.