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The Greek School Network sch.gr

The Greek School Network www.sch.gr. Network Infrastructures and Telematic Services for the Educational Society in Greece. Dr. Michael Paraskevas Technical Director of GSN Research Academic Computer Technology Institute - www.cti.gr. Our agenda…. Project’s scope Implementation model

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The Greek School Network sch.gr

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  1. The Greek School Networkwww.sch.gr Network Infrastructures and Telematic Services for the Educational Society in Greece Dr. Michael Paraskevas Technical Director of GSN Research Academic Computer Technology Institute - www.cti.gr

  2. Our agenda… • Project’s scope • Implementation model • Educational targets • Network architecture and services • Connectivity progress • Results of a study about children and Internet • Web-control service • Conclusions

  3. Introduction • Main Objectives: • create the national networking infrastructure, • connect all schools in an educational Intranet • provide and support advanced telematic services • Implemented with the collaboration of: • The Ministry of Education and Religious Affairs(MoE) • Research Centres (2) • Universities (8) • Technological Educational Institutes (2) • The GSN planning, implementation and operation is in accordance with the EC policies • Financed by the Second and Third Community Support Framework (~35 MEuro in 1999 - 2004)

  4. Consortium

  5. The implementation model assures… • The secondary education networking in accordance with the e-Europe planning • Uniform coverage of all geographic areas • Strengthening of collaborations among all levels of education • Every day support of schools offered by the local institutions • Transfer of know-how to the Ministry of Education • Viability of infrastructures and services

  6. Management Area 12 CME Steering Committee (SC) Management Area 2 Technical Committee (TC) Management Area 1 Greek School Network Organization • Steering Committee: Strategy and decisions • Technical Committee: Technical recommendations, responsibility for proper operation • Central Management Entity (CME): 2nd level helpdesk, coordination of ME • Management Entities (ME): 1st level helpdesk, area management, deployment ME1 ME2 ME12

  7. Areas of Responsibility

  8. Educational Goals • Develop a networked environment which supports the educational process • Promote the collaboration between geographically distributed groups • Offer access to digital libraries and content • Offer flexible search in a certified content • Support creation and distribution of presentations, seminars and lectures • Offer communication with academic institutions • Offer communication with international educational institutions, etc.

  9. Administration Office Dial-up School Backbone Network WWW.GRNET.GR 2 Mbps 33-128 Kbps 128-512 kbps Prefectural Node 1-16 Mbps School Laboratory 64-128 kbps Network Architecture • Three level hierarchy: • Backbone • Distribution network • Access network

  10. GRnet Distribution Network www.sch.gr Backbone & Distribution Network • Backbone: the Greek Research and Technology Network - GRNET www.grnet.gr • Distribution network : consists of 51 nodes (one in each prefecture): • 9 main nodes • 42 secondary nodes • Equipped with 75 routers, 71 servers, a large number of telecommunication circuits and the appropriate software

  11. School Laboratory Wireless Link Satellite Link Point of Presence GRnet Router Switch / Hub Point of Presence Server Access Network • Connects school or administrative units, to regional node, via: • ISDN • Leased lines • PSTN dialup • Wireless Links • ADSL (pilot)

  12. PREFECTURAL NODE SCHOOL LABORATORY 128 kbps CISCO 160xR Windows ’98, Me, XP WINDOWS NT, 2000 School Laboratory

  13. Telematic Services … Basic Services: • Addressing scheme and routing plan • Domain Name Service • Connectivity to the network / Dial-up service • E-mail (POP3, IMAP, web-mail) • Proxy/Cache • Web-Filtering • Web-Page Generator • Web-Hosting • World Wide Web • Discussion Forums • Directory Service • School Network Portal (www.sch.gr) • Personal Calendar • Personal Address Book • Users Administration • Statistics • Voice over IP • Help-Desk

  14. Telematic Services Advanced Services • Teleconference • Asynchronous Open Distance Learning • Video on Demand – VoD The majority of the above services have been developed using open source software.

  15. Levels of functionality provided by GSN

  16. Connectivity Progress

  17. Connectivity Progress Updated: 15 May 2003 • More than 1.100 administrative units have access to GSN’s services • More than 8.000 teachers have personalized access to GSN’s services

  18. Distributed Help-Desk • The service is provided to: • All educational units of secondary education (3.664) • All connected educational units of primary education (3.426) • All connected administrative units (> 1.100) • Individual users (teachers) (> 8.000) • The service is provided via: • Telephone: 801-11-801-81 • Fax • FAQs at www.sch.gr/user_support • Technical manuals • Schedule: • 9.00 – 19.00 (working days)

  19. Help-Desk service through webwww.sch.gr/user_support

  20. School Portal www.sch.gr

  21. Discussion Forawww.sch.gr/forums

  22. Study: “Children and the Internet in Greece, 2002” • Survey profile: • Year: 2002 • Conductor: Greek Consumers Organization • Sample: 570 children • Age: 7 – 17 years old • Funds: ONCE & CISA European projects • Range: Pan-Hellenic • Aim: Study of the influence of the Internet

  23. Chatrooms usage Survey: “Children and the Internet in Greece”, 2002 More than 60% chatted with strangers!

  24. Usage of E-commerce services Survey: “Children and the Internet in Greece”, 2002

  25. Parents’ Behavior Survey: “Children and the Internet in Greece”, 2002

  26. Children’ Behavior Survey: “Children and the Internet in Greece”, 2002

  27. Web destinations Survey: “Children and the Internet in Greece”, 2002

  28. Self-protection ability Survey: “Children and the Internet in Greece”, 2002

  29. Content Control Techniques • Keyword Blocking • Positive & Negative Listing • Content Labeling & Rating Systems

  30. Content Control - Content Categories GSN’s blacklist database classes: • Pornography (Category: Porn)* • Drugs (Drugs)* • Violence and hate (Violence)* • Aggressive behaviour & racism (Aggressive)* • Gambling (Gambling)* • Advertising Material (Ads) • Information about hacking (Hacking) • Information about access codes in programs without legal permission (Warez) * Blocked in the Greek School Network With red are marked the most critical categories for a school environment.

  31. Implementation issues • The blacklist is collected by a “dumb robot” • Automatic update of blacklist on a monthly base • More than 100.000 URLs are “blacklisted” • Parametric control (according Time, IP or UserId base) • Recording and reporting • Selective logging • Communication with administrators

  32. Conclusions • Successful implementation of the project due to the collaboration among MoE, Universities, Research Centers, GRnet and school communities • MoE develops the national intranet of primary and secondary education • Exploitation of the Universities’ know-how in the network design and implementation • Exploitation of national infrastructures (e.g.GRnet) • Cost effective operation compared to ISPs • A wide range of services provided to the users • Creation of an environment for the deployment of ICT in education • Creation of the necessary conditions for the development of educational content

  33. Thank you … • … for your attention! • For further information please look at:http://www.sch.gr/index_en.php (English pages)http://www.sch.gr/index_de.php (German pages) • in my webpage at http://comet.cti.gr/~mparask • Or contact to mparask@cti.gr

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