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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 |