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From Proxy Server To ISA 2006

From Proxy Server To ISA 2006. Overview History Functions Caching Process Caching Types How does it work Lab Demo. Proxy Server. A proxy server is a device that services client requests by forwarding :

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From Proxy Server To ISA 2006

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  1. From Proxy Server To ISA 2006 Overview History Functions Caching Process Caching Types How does it work Lab Demo Faculty : Trần Thị Ngọc Hoa

  2. Proxy Server • A proxy server is a device that services client requests by forwarding : • the requests to the destination server . The requests appear to come from the proxy server and not from the client. • the reply from the destination server back to the client. The response is served to the client by the proxy server. • This technology provides : • a central management point to inspect and filter all incoming and outgoing traffic • additional security by isolating the internal clients from the external network. Faculty : Trần Thị Ngọc Hoa

  3. Proxy Server ( cont ) • The main advantages of using a proxy server are: • Hiding internal IP addresses • Caching HTTP objects, which improves the client application performance • Access control, which allows more granular control over Internet access Faculty : Trần Thị Ngọc Hoa

  4. The History Of MS Proxy Server • Proxy Server 1.0 • was released in 1996. • Banner “The Only Proxy Server Fully Integrated with Windows NT Server.” ( >< Netscape Proxy server ) • Allow Internet-based access to the server-local IIS Web sites, but was unable to publish internal Web sites to the Internet. • Support ended March 2002. Faculty : Trần Thị Ngọc Hoa

  5. The History Of MS Proxy Server • Proxy Server 2.0 • December 1997. • Architecturally similar to Proxy Server 1.0, it nonetheless brought with it several new features as proxy array, server publishing … • Support for Proxy Server 2.0 ended December 2004. Faculty : Trần Thị Ngọc Hoa

  6. The History Of MS Proxy Server • Internet Security and Acceleration (ISA) Server 2000 • December 2000. • All of the Web Proxy functionality was now completely self-contained in a new service called the Web proxy. • The first proxy/firewall product • Windows Server 2000 ONLY • Will end support completely in May 2011. Faculty : Trần Thị Ngọc Hoa

  7. The History Of MS Proxy Server • Internet Security and Acceleration (ISA) Server 2004 • Standard edition in June 2004 and Enterprise edition in January 2005, • Windows Server 2000 or 2003 • Internet Security and Acceleration (ISA) Server 2006 • July 2006. • Windows Server 2003 SP1 / R2 • FULLY INTEGRATED FIREWALL PRODUCT Faculty : Trần Thị Ngọc Hoa

  8. Functions of a Proxy Server • A proxy server offers four main functions: • Forward proxy • Reverse proxy • Proxy chaining • Caching Faculty : Trần Thị Ngọc Hoa

  9. Forward Proxy • Allows client computers in protected networks to connect to the Internet by • Intercepting their requests and forwarding them to the destination server • Relaying the reply back to the client Faculty : Trần Thị Ngọc Hoa

  10. Reverse Proxy • A reverse proxy server passes the request from the Internet to an internal network resource • The most common form of reverse proxy is publishing Web services to the Internet. • A proxy server can redirect or deny the request based on the policy rule created by the administrator. Faculty : Trần Thị Ngọc Hoa

  11. Proxy Chaining • A proxy server makes use of one or more proxy servers to handle proxy requests. Faculty : Trần Thị Ngọc Hoa

  12. Overview of Caching • One of the most important functions of ISA Server • A proxy server can cache requests from Internet users trying to access published Web servers as well as cache requests from internal users trying to access content from the Internet • This provides a faster browsing experience to the clients as well as saving important network bandwidth. Faculty : Trần Thị Ngọc Hoa

  13. www.hui.edu.vn Caching Process www.hui.edu.vn http://www.hui.edu.vn http://www.hui.edu.vn Faculty : Trần Thị Ngọc Hoa

  14. Caching Types Faculty : Trần Thị Ngọc Hoa

  15. Caching Function Faculty : Trần Thị Ngọc Hoa

  16. Inaccessible Objects Faculty : Trần Thị Ngọc Hoa

  17. Demo Configuration Faculty : Trần Thị Ngọc Hoa

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