Abstract: A system and a method for replicating data among heterogeneous databases are disclosed. The system comprises: an initialization module for creating and initializing at least one shared memory, at least one message queue and at least one semaphore in a computer; a source data processing module including a data reader, a data adapter and a data loader; a target data replication module for replicating the data in the shared memory to at least one target database according to the messages in the message queue; and a cleaning module for releasing the shared memory after the replication has been completed.

Abstract: a data transfer system and method are provided in the present invention. Wherein, the data transfer system and method comprises a source data obtaining service module and a target table updating service module, both of which are divided into a main part and an affiliated part, and wherein the affiliated part is a dynamic function library, which can package sub-processings such as source data obtaining, data transformation and data inserting/updating. Meanwhile, the data transfer system and method can support quasi real-time data transfer tasks and real-time data transfer tasks at the same time. The data transfer system and method support multi-computer disaster tolerance and extension, and the customization of the dynamic function library can facilitate the change in the requirements of data transfer.

Abstract: A device described herein may include an input port operable to receive data packets; a switching board operable to classify the data packets, determine whether the data packets should be accepted by the device, and determine whether received data packets are first data packets in a session; a management board operable to receive the data packets from the switching board that were determined by the switching board to be the first data packets in a session; and one or more processing boards operable to receive data packets from the switching board that were determined by the switching board to not be the first data packets in a session and to process the received data packets.

Abstract: An improved firewall for providing network security is described. The improved firewall provides for dynamic rule generation, as well using conventional fixed rules. This improvement is provided without significant increase in the processing time required for most packets. Additionally, the improved firewall provides for translation of IP addresses between the firewall and the internal network.

Abstract: An improved firewall for providing network security is described. The improved firewall provides for dynamic rule generation, as well using conventional fixed rules. This improvement is provided without significant increase in the processing time required for most packets. Additionally, the improved firewall provides for translation of IP addresses between the firewall and the internal network.

Abstract: A device described herein may include an input port operable to receive data packets; a switching board operable to classify the data packets, determine whether the data packets should be accepted by the device, and determine whether received data packets are first data packets in a session; a management board operable to receive the data packets from the switching board that were determined by the switching board to be the first data packets in a session; and one or more processing boards operable to receive data packets from the switching board that were determined by the switching board to not be the first data packets in a session and to process the received data packets.

Abstract: Methods and apparatus for processing data packets in a computer network are described. One general method includes receiving a data packet; examining the data packet to classify the data packet including classifying the data packet as a L2 or L3 packet and including determining at least one zone associated with the packet; processing the packet in accordance with one or more policies associated with the zone; determining forwarding information associated with the data packet; and if one or more policies permit, forwarding the data packet toward an intended destination using the forwarding information.

Abstract: Methods and apparatus, including computer program products, implementing and using techniques for processing a data packet in a packet forwarding device. A data packet is received. A virtual local area network destination is determined for the received data packet, and a set of rules associated with the virtual local area network destination is identified. The rules are applied to the data packet. If a virtual local area network destination has been determined for the received data packet, the data packet is output to the destination, using the result from the application of the rules. If no destination has been determined, the data packet is dropped. A security system for partitioning security system resources into a plurality of separate security domains that are configurable to enforce one or more policies and to allocate security system resources to the one or more security domains, is also described.

Abstract: An improved firewall for providing network security is described. The improved firewall provides for dynamic rule generation, as well using conventional fixed rules. This improvement is provided without significant increase in the processing time required for most packets. Additionally, the improved firewall provides for translation of IP addresses between the firewall and the internal network.

Abstract: Methods and apparatus, including computer program products, implementing and using techniques for processing a data packet. An input port receives a data packet, a switching board classifies the data packet, determines whether the data packet should be accepted, and switches the data packet to a management board if the data packet is a first data packet in a session, and to a processing board if the data packet is not a first data packet in a session. A management board receives a data packet from the switching board, examines the data packet and forwards the data packet to one of the processing boards. One or more processing boards receives non-first data packets from the switching board and data packets from the management board and processes the data packets. A firewall and a secure gateway with firewall and virtual private network functionality for processing a data packet are also described.

Abstract: Methods and apparatus, including computer program products, implementing and using techniques for processing a data packet in a packet forwarding device. A data packet is received. A virtual local area network destination is determined for the received data packet, and a set of rules associated with the virtual local area network destination is identified. The rules are applied to the data packet. If a virtual local area network destination has been determined for the received data packet, the data packet is output to the destination, using the result from the application of the rules. If no destination has been determined, the data packet is dropped. A security system for partitioning security system resources into a plurality of separate security domains that are configurable to enforce one or more policies and to allocate security system resources to the one or more security domains, is also described.

Abstract: Systems and methods for network security including a firewall. One firewall includes a firewall engine. The firewall engine includes a first engine including a first set of rules for sorting incoming IP packets into initially allowed packets and initially denied packets. The firewall engine also includes a filter including a second set of rules for receiving and further sorting the initially denied packets into allowed packets and denied packets.

Abstract: Methods and apparatus, including computer program products, implementing and using techniques for processing a data packet in a packet forwarding device. A data packet is received. A virtual local area network destination is determined for the received data packet, and a set of rules associated with the virtual local area network destination is identified. The rules are applied to the data packet. If a virtual local area network destination has been determined for the received data packet, the data packet is output to the destination, using the result from the application of the rules. If no destination has been determined, the data packet is dropped. A security system for partitioning security system resources into a plurality of separate security domains that are configurable to enforce one or more policies and to allocate security system resources to the one or more security domains, is also described.