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Microsoft Proxy Server 2.0

Microsoft Proxy Server 2.0. By Helen Sarian Nam Trieu Roy Chau Nancy Trang Xiao Xia Ren. Objectives of the Proxy Server. Defining the Microsoft Proxy Server 2.0 Benefits Features System Requirements Pricing Different Sized Network Configuration of Proxy Server Proxy Relay

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Microsoft Proxy Server 2.0

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  1. Microsoft Proxy Server 2.0 By Helen Sarian Nam Trieu Roy Chau Nancy Trang Xiao Xia Ren

  2. Objectives of the Proxy Server • Defining the Microsoft Proxy Server 2.0 • Benefits • Features • System Requirements • Pricing • Different Sized Network • Configuration of Proxy Server • Proxy Relay • Advantages and Disadvantages of Proxy • Summary

  3. Definition Of Proxy Server 2.0 • Extensible firewall • Content cache server • Provides Internet security • Improves network response time • Offers Web caching • Gateway with firewall-class security between a LAN and the Internet • Blocks access to undesirable sites.

  4. Purpose of Proxy Server www.microsoft.com/technet

  5. Benefits of Proxy Server • High Performance Caching • Manageability & Control • Firewall Security

  6. High-Performance Caching • Accelerates access to the Internet • Offers unbeaten scalability • Fault-Tolerance

  7. Manageability & Control • Blocks access to undesirable web sites • Supports centralized management tools • Many cost saving benefits

  8. Firewall • Protects internal network while allowing connection to the Internet • Real-time alerting and logging • Cannot protect against attacks outside of the firewall and viruses

  9. 2 Types of Firewalls • Application Level • Proxy Server • No direct traffic between networks permitted • Logging and access control • Network Level • Router • Route traffic directly, fast and transparent.

  10. Features of MS Proxy Server 2.0 • Real-time Security Alerts • Reverse Proxy • Reverse Hosting • Server Proxying • Improved Performance • Hierarchical Content Caching • FTP and HTTP Cache Support • Web Administration

  11. Real-Time Security Alerts • Notification of network under attack • Supports several alerting thresholds

  12. Reverse Proxy • Places web server behind Proxy server to Publish to the Web • Web Server can maintain access to internal network services

  13. Reverse Proxy Client Internet Dept Connect By LAN Proxy Web Server Secure Network

  14. Reverse Hosting • Extension of reverse proxy • Allows several web servers behind MS Proxy Server to publish on the Internet. * Web server can publish independently * Also, can appear as directories in a single large virtual web server.

  15. Server Proxying • Application Server can be behind Ms Proxy Server for added security. • Similar to Web Server behind Proxy Server • Example: MS Exchange Server computer can be placed behind you Proxy Server

  16. Improved Performance • Offers unbeaten performance for Internet connection • Proxy Server 2.0 is 40% faster than Proxy Server 1.0

  17. Hierarchical Caching • Caching across a hierarchical connection of individual Proxy Servers • Enables distributed deployment to branch offices and departments

  18. FTP and HTTP Cache Support • You can cache not only HTTP 1.0 objects • You can also cache HTTP 1.1 • FTP Objects • Greater control over the Tim-to –Live (TTL) setting • As well with MS Proxy Server version 2.0

  19. Web Administration • You can administer MS Server locally or remotely • Via a Web browser for added Management flexibility • Ease-of-use • You can even create HTML error pages

  20. System Requirements for MS Proxy Server • Computer / Processor • Memory • Hard Disk • Display • operating System • Peripherals

  21. Computer /Processor of MS Proxy Server • 486/33 MHz or Higher • Pentium or Pentium PRO Processor • Intel Pentium 133 MHz supports up to 300 desktop PCs • Intel Pentium 166 MHz supports more than 300 desktop PCs also supports DIGITAL Equipment Alpha Processor /AXP

  22. Hardware • 1 to 300 clients: Pentium 133 with 2 GB of cache and 32 MB of RAM • 300 to 2,000 clients: Pentium 166 with 2 to 4 GB of cache and 64 MB of RAM • 2,000 to 3,500 clients: Pentium 200 with 8 to 16 GB of cache and 256 MB of RAM

  23. Memory of MS Proxy Server • 24 MB of RAM • 32 MB RAM supporting up to 300 desktop PCs • 64 MB RAM supporting more than 300 desktop PCs

  24. Hard Disk MS Proxy Server • 20 MB of available hard disk space minimum • For caching 100+ MB recommended

  25. Display of MS Proxy Server • VGA • Super VGA • Video Graphics adapter • Compatible with Windows NT Server 4.0

  26. Operating System of MS Proxy Server • Microsoft Windows NT Server version 4.0 • With windows NT Server 4.0 Service Pack 3 or greater

  27. Peripherals Microsoft Internet Information server 3.0 or greater

  28. MS Proxy Server Pricing • Microsoft Internet Security & Accelerate Server 2.0 English North America CD • Version: 2.00 • Part Number: 621-00135 • Environment: Win NT • Media: CD • Estimated Price: $999.00

  29. Pricing Cont.. • Microsoft Internet Security & Accelerate Server 2.0 English Competitive/Version Upgrade North America CD • Version: 2.00 • Part Number: 621-00138 • Environment: Win NT • Media: CD • Estimated Price: $509.00

  30. Different Sized Networks • Small Office Network • Medium-Size office Network • Large Enterprise Network

  31. Small Office Network • Single LAN segment • Connectivity to an ISP • Supports fewer than 300 clients • NIC to the internal network • Modem to the external network (Internet) • Uses Auto Dial for dialing to the Internet

  32. Small Network Internet Internet Service Provider Proxy Server Web Server Client Client

  33. Small Office Network Security • Password identification required • User permissions • Protocol definitions • Domain, cache, and packet filtering

  34. Small Network on LAN www.3com.com/smallbusiness

  35. Medium Sized Network • Branch office with several LAN segments • Central office has a single LAN segment • Demand-dial connection from Central office to the Branch office • Supports fewer than 2000 clients • Auto Dial used for dialing between offices • NIC to local network (branch) • Modem to network in the central office

  36. Large Enterprise Network • Central location with LAN segments with a backbone LAN • Branch offices, each with a single LAN segment • ISP and Dedicated Link connection from central location to an ISP • Supports over 2000 clients

  37. Auto Dial • Proxy Servers dialing technique to an ISP for Internet connection • Uses Windows NT ‘s (Remote Access Service) and Dial Up Networking to connect with an ISP

  38. Advantage of Auto Dial • Save company Internet charges • Event-Driven (is activated only when Internet connection is needed • Regulates usage – connect Internet only during office hours

  39. Dial Up Networking • Purpose • Connect client to remote networks • Phonebook entry can store all the required settings to connect a remote network • Personal • Company (public access)

  40. Proxy server configuration • Uses Internet Service Manager. • Proxy services • Caching page • Definition of cache • Types of cache • Application benefits from larger caches • Routing page • Publishing page • Permission page

  41. Caching Page

  42. Cache • Definition of cache • Types of caches • Applications that benefit from larger caches

  43. Definition of cache • A cache is a small, higher speed memory system which stores the most recently used instructions or data from a larger but slower memory system (something more or less temporarily). • Web pages you request are stored in your browser’s cache directory on your hard disk.

  44. Types of Caches • Local server caches • Ex. Corporate LAN servers or access provider servers that cache frequently accessed files. • A disk cache • Either a reserved area of RAM or a special hard disk cache where most recently accessed data is stored for fast access. • Ex. L2 cache memory which is on a separate chip from the microprocessor but faster to access than regular RAM. • A disk cache.

  45. Cont. types … • Ex. L1 cache memory on the same chip as the microprocessor. • International, national, regional, organizational and other “macro” caches to which highly popular information can be distributed and periodically updated and from which most users would obtain information.

  46. Applications that benefit from larger caches • Use of Apple GeoPort Telecom Adatper • Computationally intensive applications such as 3-D rendering • Games, particularly 3-D types such as Marathon and Descent • SoftWindows

  47. Proxy Relay • Internet Firewall to protect the Intranet • Intranet Firewall Window • Static Router

  48. Proxy Relay • Proxy Server must be located on the WAN • May not be located on the LAN • Problem with a proxy server on a LAN is that each client must be configured to support the proxy, which will have more administration tasks.

  49. Proxy Relay cont… • If proxy server is already installed on LAN, it is better to move it to WAN • Enable Automatic Proxy Forwarding, meaning Internet Firewall will automatically forward all Web proxy requests

  50. Installing a proxy on the WAN • To install the proxy server on the WAN port, first configure the Internet Firewall’s intranet settings to allow LAN users to access the proxy. • Install the proxy server • Install and configure using a valid IP address • Proxy server connect to a hub that is connected to the WAN port on the Internet Firewall

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