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Research and Implementation of Hierarchical and Regional Patch Distribution System

Author: LiBingBing
Tutor: YangWu
School: Harbin Engineering University
Course: Computer System Architecture
Keywords: P2P technology Chord algorithm Application Layer Multicast Patch is released
CLC: TP311.52
Type: Master's thesis
Year: 2008
Downloads: 33
Quote: 0
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Abstract


With the rapid development of Internet technology , network security has become the major challenges facing humanity of the information age . The root causes of network security issues _ because of the loopholes of the operating system or application . The fundamental method removes the vulnerability is to install software patches, patch management has increasingly become an important part of safety management . This paper focuses on the P2P technology applied to the patch is released , make full use of the resources at the edge of the network , through communication and collaboration between the P2P node , thus avoiding the traditional C / S mode performance of server-centric patch is released bottlenecks and other problems. The drawbacks of the existing patch management system architecture based on hierarchical Fenwick patch release routing model , hierarchical division of the system , the distributed sub-network management system can be management ; based on the Chord algorithm , a plurality of service nodes organized into a high - performance , scalable topology and to achieve resource locator . Hierarchical sub - domain patch release peer-to-peer routing model based on the design of a practical and efficient patch distribution strategy . The same time, the application layer multicast algorithm Chord algorithm to improve the the patch distribution efficiency and fault tolerance , and reduce the amount of network bandwidth . Finally, the design of the distribution system based on hierarchical Fenwick patch . The system in a hierarchical sub- domain patch is released the peer routing model based on the patch active , fast, multi-point distribution and multi-source downloading . At the same time , support for P2P patch release nodes joining and leaving , to increase the release system scalability and robustness . In the process of system implementation , design XML-based communication protocol , you can extend the protocol according to requirements ; research and Challenge Handshake protocol - CHAP , the node joins the network , the identity of the effectiveness of certification , to prevent illegal node is free to join the network ; research and resolve firewall and NAT active push to join the client and patches communication problems . The actual running instance of the system to verify the effectiveness of the system .

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