1. MIIS1 Managing Internet Information Services Liu, Peek, Jones. Buus, & Nye

2. MIIS2 Purpose u How to plan, setup & manage Internet services u Necessary Skills –UNIX System Administration –Writing, Preparing, Org. Data

3. MIIS3 Internet Service Concepts u What is the Internet u How are services structured u TCP/IP u How Clients talk to servers

4. MIIS4 What is the Internet u A Federation of Networks speaking same protocols u Connected by high-speed “telephone” circuits u Roles played –Information provider –Customer –Connection provider (ISP)

5. MIIS5 Connections u Major accessing methods –Shell Access –Dial-up networking –Leased circuits u Full-time IP connection –expensive –hard to setup –Fastest u Dial-up (Shell) –terminal emulation –Not speaking TCP/IP –Limited functionality u TCP/IP over dial-up –SLIP/ PPP –ISDN

6. MIIS6 What is the Internet u Computers –CPU Resources –Information provided –Unix u People u Places

7. MIIS7 Structure u Client / Server –Client - User interaction –Server - Task completion u Internet vs. CompuServe

8. MIIS8 TCP/IP u Most common protocols in suite u Packets u Media u Layered

9. MIIS9 Protocols u IP –Address –dotted-octet –four sets of 8 bits –subnets –hierarchy of assignment –simplified routing u TCP –Guaranteed delivery –serialization of data (stream mimic) –port numbers u UDP –Port numbers –Checksum (small size)

10. MIIS10 Servers u Un*x - Inetd –Superserver –Dynamic servers –Matchmaker –Based on port u Win - IIS, SuiteSpot, etc u Standalone –Faster –For busy servers –Run as daemon

11. MIIS11 Naming u Unique Address & Name u Domain Name System u Least to Most specific label u Aliases

12. MIIS12 WWW example u User menu click u Client translates to server query u TCP packet to port 80 (default) u Server opens u Reads file (etc.) u Sent to client u One connection per transaction u FTP & Gopher similar

13. MIIS13 Intro to Information Services u Future Publications / Databases u Simple & Cheap u Expected u High-tech toy to business tool

14. MIIS14 Services 1 u Email based –High-priority –largest customer base –Types F Archive F Mailing list u FTP –Limited login –hard to search –various types of files transferred

15. MIIS15 Services 2 u Telnet –Login –Easy to adapt existing services –Ex: DUATS u Finger –Identify people –Small amounts of info transfer u Gopher –Directory based –Easy to setup

16. MIIS16 Services 3 u WWW –FTP / Wais client / Gopher –HTML –Flexible –Dynamic document linking u WAIS –Document search –Minimal browse –Works best with lots of words –Large indexes

17. MIIS17 What to do with Internet Services u Internal –Central Corporate Information –Company Logos, Style sheets, Forms, etc. –Timecards –software –employee directory u External –Global Network Navigator –BSDI (BSD/386 man pages) –Customer support & Information