Internet services and protocols

Internet:

• a decentralised network of computers
• based On server-client architecture
• using the Internet Protocol (IP)
• organised into domains and subdomains with name servers and ``gateways'':
  • for network types (USA):
    .edu, .com, .org, .net, .gov, .mil
  • for countries and subnetwork types:
    .ca, .ci, .de, .fr, .it, .it, .ja, ...
    .ed.uk,
    .uni-bielefeld.de
    .lili.uni-bielefeld.de
    .coral.lili.uni-bielefeld.de
    
• administered by providers (institutions, companies)
• with protocol-defined address names:
  Web: http://coral.lili.uni-bielefeld.de/Classes/
  Email: gibbon@spectrum.uni-bielefeld.de