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IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
IT for Information Professionals
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IT for Information Professionals

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Presentation given to the CLSIG Professional Development Club, London, 22 September 2008.

Presentation given to the CLSIG Professional Development Club, London, 22 September 2008.

Published in: Technology, Business
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Transcript

  • 1. IT for Info Pros
    • Demystifying your IT infrastructure
    • Ben Summers
  • 2.  
  • 3. Your desktop computer
  • 4. Networking Switch
  • 5. Network Ethernet cable
  • 6. Network Base station
  • 7. L ocal A rea N etwork
  • 8. Servers
  • 9. Desk-side servers
  • 10. Rack mounted server
  • 11. Client / server architecture Clients Server View and edit Store and process
  • 12. Software and the OS Operating system Application software Operating system Server software Desktop Server Desktop Hardware Server Hardware Firmware (BIOS) Firmware (BIOS)
  • 13. Software Operating system Server software (eg Web Server) Firmware/BIOS Operating system Applications (eg Web Browser) Firmware/BIOS Desktop Server Network
  • 14. L ocal A rea N etwork
  • 15. W ide A rea N etwork
  • 16. ISP ISP ISP ISP Internet Leased Line / ADSL Router
  • 17. Bandwidth LAN ADSL Inter-ISP 100Mb/s 0.5Mb/s send, 6Mb/s receive 100 to 1000Mb/s
  • 18. ISP ISP ISP ISP Internet
  • 19. Data centres
  • 20. Data centres (Maximilien Brice; Claudia Marcelloni, © CERN)
  • 21.
    • Hubs where lots of ISP meet together
    • Cheap to connect between ISPs
    • High security
    • Air conditioning and backup power
    Data centres
  • 22. ISP ISP ISP ISP Internet
  • 23. IP Address 192.168.99.201
  • 24. Only four billion
    • 0.0.0.0
    • to
    • 255.255.255.254
  • 25. Private IP addresses
    • 10.0.0.0 – 10.255.255.255
    • 172.16.0.0 – 172.31.255.255
    • 192.168.0.0 – 192.168.255.255
  • 26. ISP ISP ISP ISP Internet Public addresses Private NAT
  • 27. Network Address Translation 10.0.0.12 (private) NAT 17.0.0.29 (public) ISP Rest of the internet
  • 28. Security
    • Because everyone makes mistakes
  • 29. Making mistakes
    • Developers
    • System administrators
  • 30. ISP ISP ISP ISP Internet Firewall goes here
  • 31. Putting it altogether Operating system (Mac OS X) Operating system (Solaris) Desktop Server Network Desktop Hardware Server Hardware Firmware (BIOS) Firmware (BIOS) Application (Firefox web browser) Server software   (Apache web server)
  • 32. ISP ISP ISP ISP Internet
  • 33. Magic?
  • 34. Good problem reports
    • Describe accurately and comprehensively
    • Don’t jump to diagnoses
    • Don’t panic!
  • 35. Current IT issues
    • Virtualisation
    • Hosted services/cloud computing
    • Multi core and hybrid processors
    • Semantic web
    • The future of email
    • Why techies dislike Microsoft
    • Digital Rights Management
    • Open source software
    • Green computing
    • Mobile devices
  • 36. IT for Info Pros
    • Demystifying your IT infrastructure
    • Ben Summers
    • [email_address]
    • www.oneis.co.uk/blog

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