New Frontiers: CEENet'98 in Bratislava Report from the 4th CEENet Network Technology Workshop Bratislava, August 22-30, 1998 Bratislava was the next stop for the CEENet Network Technology train. Moreover, it was the place where CEENet education endeavor cross new frontiers and open new horizons with establishing a track which deals with the application of computing and communication technology into the realm of education. The home of the Workshop was the Slovak Technical University, actually the Computer Science Department and the Computer Center. The workshop opened on August 22, 1998, at the Big Lecture Hall of the University, with the presence of Dr. Pavol Horvath, the Director of SANET, Mr. Jonathan Peizer, the Chief Information Technology Officer of Soros Foundation, Dr. Jean-Paul Nadreau, the NATO-Codirector of the Workshop and Vice-chancellor for research of the University of Quebec, Dr. Jacek Gajewski and Professor Dr. Oliver B. Popov, both from CEENet. They all gave short welcome speeches. The form and the structure of the education system followed the established pattern since the very beginning of the workshops, comprised of three different types of activities: scientific lectures, the presentations given by the sponsors, and finally the free style evening lectures. Due to the large number of sponsors and the topics covered, very few of the evening lectures unlike the previous years, were devoted to the social and the cultural implications of the network technology. Professor Popov and Dr. Gajewski moderated all of the sponsor's spotlights and evening lectures. Eighteen lecturers from fourteen different countries carried out the Scientific Programme. Six more lecturers, who came from our sponsors, joined the CEENet team. For the first time, we had topics like Internet commerce, the concept of portals, robots, and distributed indexing, and security in RAS. Moreover, we had a complete new track termed as Wired Education. The track proved to be very successful one. For the execution of the programme for this track, our Nordic crew made up of lecturers from Estonia, Finland and Sweden was responsible. There were a number of joint lectures for the three tracks. The Workshop guest of honor, Mr. Ed Kozel, from Cisco Systems, gave one of the most interesting and inspiring lectures. He talked about the profound changes in the telecommunication industry, the new Internet itself and the implications of these changes in CIT to all aspects of life. The workshop academic endeavor, which means the Programme and the lecturers, was very highly evaluated. Indeed, the programme relevance, the quality of teaching and instruction, and the suitability and usefulness of the distributed materials, had higher grades then any of the workshops in the past. The addition of one more track meant new challenge for all of the people involved with the preparation of the workshop. As time went by, it became clear that the Wired Education track would have a very positive spill over into the other tracks. Programme was quite demanding and completely absorbing for most of the attendees, which also help to keep the vitality of the learning environment established during the very first workshop. The best students in each of the tracks, received Palm Pilot PDAs donated by the 3Com corporation. The gift from O'Reilly enabled us to distribute three hundred books among the attendees. The Workshop was financed by two grants: one from Soros Foundation and the second from the NATO Science Programme. Hence, we would like to express our deepest gratitude and sincere appreciation to Mr. Jonathan Peizer from the Soros Foundation and NATO Science Policy Committee for their continuos support of the CEENet educational activities. SANET, the research and educational network of Slovakia and a member of CEENet, provided the external connectivity. Our special thanks to Dr. Pavol Horvath, Mr. Jaroslav Bobovsky, and their associates for giving crucial logistic assistance and hospitality. Many aspects of the workshop logistics (eg. travel arrangments and ticket reimbursement, lecture text collection) were dealt by the experienced team from Estonia: Mrs Anne Mardimae and Mrs. Riina Reinumagi. We would like to extended our appreciation to all the lecturers and the attendees, sponsors and anyone who gave their time, shared their knowledge, and distributed the spirit of co-operation and collaboration through the CEENet Human Network. The Knowledge Resources of the Workshop Oliver B. Popov (Macedonia) Chair Anne Villems (Estonia) Track leader August Jauk (Slovenia) Track leader Volin Karagozov (Bulgaria) Track leader George Macri (Romania) Richard Perman (USA) Gunthner Shimttner (Austria) David Billard (France) Ari Leino (Finland) Kaisa Vahahahyyppa (Finland) Karin Ekberg (Sweden) Rolf Dalin (Sweden) Gorazd Bozic (Slovenia) Wojtek Sylwestrzak (Poland) Maciek Krzyzanowski (Poland) Mart Laanpere (Estonia) Ksenija Furman-Jug (Slovenia) Miroslav Milinovich (Croatia) Jan Haering, Jr. (Czech Republic) Jaroslav Bobovsky (Slovakia) John LeRoy Crain (United Kingdom) ******************************************** Ed Kozel (USA) Rory Duncan (United Kingdom) Len Parsley (United Kingdom) Franjo Majstor (Slovenia) Jurij Rakowsky (Czech Republic) Ralph Schmidt (Germany) The Programme of the CEENet '98 Workshop T1 & T2 & T3: Networking - A Milieu of Computing and Communications Paradigms (2 hours - Oliver B. Popov) (2 hours - George Macri) Technological prerequisites Packet Switching Network Architectures Reference Models The Name and Address Space Elements of Protocol Engineering Concurrent and Distributive Environments Part I - 9:00 -10:30 Part II - 10:45 -12:15 T1&T2: Satellite Communications Part I - 14:15 -16:00 Part II - 16:15 - 18:00 T3: Wired Education: Introduction and team's formation (Anne Villems) 14:30 - 15:15 The Finish case: Training school teachers to use Internet (Ari Leino) Part 1 15:15 - 16:00 The Finish case (Ari Leino) Part II 16:15 - 17:45 *************************************** Monday, August 24, 1998 *************************************** T1: Network Technologies (1 hour - August Jauk) Networks (LAN, MAN, WAN, point to point, clouds) Modems (dial-up, leased line, xSDL, cable) Interfaces Routers 9:00 - 10:45 (1 hour - George Maacri, Ksenija Furman-Jug, Jan Haering, Jr.) Labs: DNS (resolver, tools, nslookup, dig, host) Ping, Traceroute, Routers: Basic configuration 9:45 - 10:30 T1: IP Addressing and Introduction to IP Routing (1 hour - August Jauk, Cisco, Newbridge Networks) Addressing The idea behind routing Special address conventions Classful addressing Classless addressing Routing algorithms: IGPs versus EGPs 10:45 - 11:30 (1 hour - Cisco) IGPs Types of routing algorithms Distance vector algorithms RIP 11:30 - 12:45 Labs: (August Jauk, Jan Haering, George Macri, Ksenija Furman-Jug) Routing: static routes, RIP, route distribution 14:30 - 17:45 T2: Electronic Mail - RFC 822 Electronic mail RFC 822 User Mail Agents (SMTP, POP, IMAP, Netscape mail, Pegazuz vs. Eudora features, Netickete, MIME, lists, and list servers) 9:00 - 9:45 T2: Sendmail + Qmail + FTP Linux or BSD set-up, from Send to Q(mail) 9:45 - 10:30 T2: Labs on Send and Q (mails) and FTP utility (Volin Karagozov) 10:45 - 12:15 T2: News and FTP (Volin Karagozov) 14:30 - 15:15 T2: WWW Technology - The Intro (Miroslav Milinovic) The Reasons and the Ideas behind the Web The Reader Prospective: clients and The search for information 15:15 - 16:00 Directory Services (Miroslav Milinovic) 16:15 - 17:00 Labs on the Info systems (News, FTP, DS and WWW) (Miroslav Milinovic, Volin Karagozov) 17:00 - 17:45 T3: Instructional design principles and modes (Mart Laanpere) Theoretical aspects 9:00 - 10:30 Digital Think Exercises (Mart Laanpere) Case Studies 10:45 - 12:15 Case studies (Mart Laanpere) 14:30 - 16:00 Target group analysis (Anne Villems, Mart Laanpere) 16:15 - 17:45 * * * **************************************** Tuesday, August 25, 1998 **************************************** T1: Serial Communications (45 minutes - Ksenija Furman-Jug) Leased line vs. dial-up Dial-up approach Provider prospective User prospective Leased line approach Provider prospective User prospective (45 minutes - Maciek Krzyzanowski) Synchronous/asynchronous communications Transmission modes Asynchronous transmission Synchronous transmission 9:00 - 10:30 Telephone lines and modes (Jan Haering,Jr. George Macri, Richard Perlman) The nature of telephone lines Dial-up and leased line modems Modem set up 10:45 - 12:15 (Jan Jaering, Jr. George Macri, Richard Perlman, Ksenija Furman-Jug) Labs: The modems (dial-up and leased line) in practice 14:30 - 16:00 (Ksenija Furman-Jug, Jan Haering, Jr., Maciek Krzyznowski) ISDN Fundamentals Usage Equipment Point to point protocols SLIP PPP File Transfer Protocols Dial-out Stand alone host Networking via dial-up lines and PC router 16:15 - 17:45 T2: Labs on the Info systems (News, FTP, DS, WWW) (Volin Karagozov, Mirioslav Milinovic) 9:00 - 10:30 T2: Labs on the Info systems (News, FTP, DS, WWW) (Volin Karagozov, Mirioslav Milinovic) 10:45 - 11:30 T2: WWW Technology (Miroslav Milinovic) The Writer Prospective The Basics of HTML Style and format Content creation 11:30 - 12:15 T2: WWW Technology (Miroslav Milinovic) The Writer Prospective The Basics of HTML Style and format Content creation 14:30 - 15:15 T2: Labs on the WWW writer prospective (Miroslav Milinovic) 15:15 - 16:00 T2: Labs on the WWW writer prospective (Miroslav Milinovic) 16:15 - 17:45 T3: Content analysis (Ari Leino) theory 9:00 - 10:30 T3: Content analysis (Ari Leino) group cases and representations Practical assignments 10:45 - 12:15 T3: Content analysis (Ari Leino) Practical assignments 14:30 -15:15 T3: Instructional goals and assessment procedures (Rolf Dalin) setting goals and objectives assessment procedures derivation Web-based courses and student evaluation Practical assignments Part I 15:15 - 16:00 Part II 16:15 - 17:45 ************************************* Thursday, August 27, 1998 ************************************* T1: Serial communications Labs: Dial-out 9:00 - 10:30 (Richard Perlman, Jan Haering, Jr.) Dial-in: Comm servers and modem pools - RADIUS Authentication, access control and accounting. PPP Terminal Access Web and Firewalls 10:45 - 12:15 (Richard Perlman, Jan Haering, Jr.) Why an authentication protocol NAS/Terminal server based authentication Server based authentication RADIUS overview The authentication process The accounting process 14:30 - 16:00 RADIUS internals RFC2138 (authentication) tutorial RFC2139 (accounting) tutorial RADIUS Proxy services RADIUS Implementations (Richard Perlman, Jan Haering, Jr., Ksenija Furman-Jug) Labs: Dial-in RADIUS: configuring the reference Livingston 1.16 server for NT and UNIX. 16:15 - 17:45 T2: Administring a WWW server (Miroslav Milinovich) Server installation WWW service in a multiuser environment (Lectures + Labs) 9:00 - 12:15 Cashing and Indexing 14:30 - 17:00 User support (Miroslav Milinovic) 17:00 - 17:45 T3: Selecting instructional strategies (Rolf Dalin) inquisitory and expository strategies instructivistic and constructivistic strategies instructional events 9:00 - 10:30 T3: Pedagogy of open and distance learning (Anne Villems) 10:45 - 12:15 T3: Instructional strategies and pragmatics (Anne Villems) Part I 14:30 - 16:00 Part II 16:15 - 17:45 **************************************** Friday, August 28, 1998 **************************************** T1: Connecting networks IGP Revisited OSPF (August Jauk, George Macri, Ksenija Furman-Jug) Labs Part I 9:00 - 10:30 Part II 10:45 - 12:15 (August Jauk, Labs: George Macri, Ksenija Furman-Jug) EGPs BGP4 Labs T1: ATM Technology (Guenther Schmittner) 14:30 - 16:00 T2: Databases on the Internet (David Billard) classical database environment what makes database on the Internet so different? organizing the data for their use via the Web (Araneus project) querying databases (browsing and navigating) TFE (Target Form Expression), securing databases' accesses (iSaSiLk) transactions on the Internet workflows on the Internet 9:00 - 10:30 T2: Electronic commerce - I (David Billard) definition of electronic commerce payment solutions for the Internet the need for micro-payment solutions creating a commercial web server 10:45 - 12:15 T2: Electronic commerce - II (David Billard) putting the product database on the server allowing clients to browse/navigate in the database allowing clients to choose products the need of transactions 14:30 - 16:00 T3: Virtual learning environments (Kaisa Vahahyyppas) Types of virtual learning environments Tolls Courseware authoring kits IMS project at EDUCOM 9:00 - 10:30 T3: Human Computer Interface (Mart Laanpere) 10:45 - 12:15 T3: Designing environments and interfaces for learning (Mart Laanpere) 14:30 - 16:00 *************************************** Saturday, August 29, 1998 *************************************** T1 & T2: Fundamentals of Network Security (Gorazd Bozic, Cisco, Newbridge Networks) Internal and external security Data encryption (methods, techniques and standards) Secure TCP/IP levels Types of attack Firewalls Security incidents: response and resolution Security issues in services 9:00 - 10:30 Part II 10:45 - 12:15 T1 & T2: Network management architecture (Maciek Krzyzanowski, IBM, Newbridge Networks) Extraction and selection of network data Performance analysis and prediction Fault management Configuration management Accounting and planning Using SNMP, CMIS/CPIP Commercial products /OpenView, NetView, NetManager Part I 14:30 - 16:00 Part II 16:15 - 17:45 T3: Education telecommunications Theories (Karin Ekberg) Web based educational communications tools management educational environments 9:00 - 10:30 T3: Comparative study of Internet related courses in the Net world (Kaisa Vahahyyppas) 10:45 - 12:15 14:30 - 15:15 T3: Practice and lab work (Kaisa Vahahyyppas) 15:15 - 16:00 16:15 - 17:45 *************************************** Sunday, August 30, 1998 *************************************** T1 & T2: Pragmatics of the National Networks Operations LIR gTLD NIC NOC Help Desk and User Support Ten - 34 (Basics) Part I 9:00 - 10:30 Part II 10:45 - 12:15 T3: Collaborative learning: case studies (Karin Ekberg, Anne Villems) 9:00 - 10:30 T3: Concluding session with additional topics and cases (Anne Villems) 10:45 - 12:15 ****************************************************** Sponsor's Spotlight For the past four years, since the inception of the CEENet Network Technology Workshops, the leading companies in the area of Information and Communication Technology have provided the crucial support to the learning environment, with equipment, donations and lecturers. Bratislava proved to be the place where we had more sponsors than ever before, thus increasing the pool of corporate resources to the CEENet and the number of opportunities for the attendees to meet the best in the industry. Cisco Systems Along with a few other companies, Cisco certainly makes the honor roll of our corporate sponsors. The communication equipment, which we have termed as "the best way to find your way through the Net" made up the backbone of the CEENet Workshop Network. Naturally, it was used for teaching one of the major subjects in the Engineering the Network track, namely routing, remote access, as well as dial-in and dial-out networking. We had also the privilege to have three experts from Cisco Systems who contributed greatly to the Programme: Edward Kozel, Ralph Schmidt, and Franjo Majstor. Sun Microsystems The company has been present at all CEENet events with their exceptional servers and workstations. The unique and demanded implementation of Solaris operating system was at the heart of all the Internet services, including WebCT for the Wired Education Track. Oracle Oracle, who contributed for a second year, through Mr. Wilfried Raunikar introduced the Oracle Learning Server. The presence of this premier company in DBMS and their extensions with Internet based services, was particularly important for many of the students, since a large part of the programme for the Network Knowledge Sources track was devoted to the construction of data bases on the Internet, Web interfaces and their usage for Electronic Commerce. NetSat Express NetSat Express, which is a part of the Globecomm Systems Company, is well known in the CEE region, especially with their low-cost connectivity solutions through the PC Direct technology. Mr. Jeremy Morrison, who is a product-line manager with the company, had a two-hour presentation on the range of products and services from NetSat Express. The Globecomm Systems also provided an excellent lecturer, Mr. Tom Parish, who thought on the fundamentals and the implications of Satellite Communications. 3Com It is a company, for the first time present at the CEENet Workshops that became a major sponsor. Thanks to Mrs. Heike Antoni and Mr. Juraj Rakovsky, 3 Com donated a number of materials, books and CDs on networking, as well as ten Palm Pilots Professional DPAs that were awarded to the best students in each track. For the duration of the Workshop, for the lectures and the labs on RAS and security, they gave as the appropriate equipment (Total Control Hub), along with a state of the art video beam. Newbridge Networks Newbridge is another newcomer at CEENet Workshops. A company well known for its products and complete solutions in the area of networking, is especially focused on private networks and ISPs. Mr. Len Parsley presented the profile of the company, while Mr. Rory Duncan, from Time Step, which is an affiliate of Newbridge, gave a lecture on security issues in VPNs, encryption and IPSec standards. O'Reilly In the last decade, O'Reilly has not ceased to amaze us with scholarly, witty written, timely and relevant publications with respect to networking, communication and computing technology. Ms. Cathy Record, Ms. Cathy Delao and Mr. Vee McMillen, who had worked relentlessly for a couple weeks in order to ship the books at the proper place, finally succeeded. Over three hundred books were later distributed by the CEENet Secretariat to the participants from twenty countries. The Evaluation of the Workshop A) The learning environment (programme, lecturers, teaching) A1) The relevance of the programme content with respect to your expectations and your interests: Bratislava Zagreb Budapest 4.25 4.13 3.97 A2) The quality of teaching Bratislava Zagreb Budapest 4.25 3.81 3.61 A3) The instructional facilities Bratislava Zagreb Budapest 4.25 4.83 4.23 A4) The suitability of the distributed materials Bratislava Zagreb Budapest 4.40 4.34 4.08 A5) How useful were the evening lectures? Bratislava Zagreb Budapest 3.55 4.79 3.53 A6) Was the Sponsor's Spotlight session worthwhile time spent for you. Bratislava Zagreb Budapest 3.55 3.96 3.50