Difference: TCPForDummies (1 vs. 2)

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TCP for Dummies Notes

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TCP for Dummies Notes

Introduction

  • Networking protocols define rules and conventions for communication between network devices
  • Developed network protocols in "layers"
    • each layer of protocols responsible for defining communication between a certain network piece
  • protocol suite - a combination of different protocols for each layer
    • referred to as a TCP/IP stack

Chapter 1 - Understanding TCP/IP Basics

  • Internet Society (ISOC)
    • guides future of internet by overseeing Internet standards, public policy, education, and training
    • members are corporations, international and gov. organizations, and individuals (ex. IAB, IETF)
  • Internet Corporation for Assigned Names and Numbers (ICANN)
    • assigns Internet addresses
    • run by an international board of directors and funded by the Internet community
  • Internet Activities Board (IAB) *defines the architecture for the Internet *oversees the Internet's protocols (TCP/IP)
  • Internet Engineering Task Force (IETF)
    • 70 informal committees responsible for keeping the Internet up and running every day
    • IAB supervises the IETF

  • Request for Comments(RFC) document the TCP/IP protocols
    • the RFC editors are a small group that works for ISOC but anyone can write an RFC
    • RFC categories:
      • Standard - approved technical standard, Proposed Standard -> Draft Standard -> Standard
      • Best Current Practices (BCP) - guidelines and recommendations, RFC 4107 "Guidelines for Cryptographic Key Management"
      • Experimental - part of a research or development project, RFC 5335 "Internationalized Email Headers"
      • Historic - refers most RFCs are former standards that are now obsolete
      • Informational (FYI) - provides general information, RFC 4677 "The Tao of IETF - A Novices Guide to the Internet Engineering Task Force"
  • intranet - a private network within an organization
  • extranet - a part of an intranet that is shared with people outside your organization (ex. customers, suppliers)
  • Virtual Private Networks (VPN) - private network that runs over public facilities, such as the Internet
    • secure bc it encrypts data before sending it, and uses special tunneling and security protocols on the public network

-- HelenFemmel - 2015-07-27

 
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