August 2000
Intermediate to advanced
800 pages
21h 5m
English
In 1969, the Defense Advanced Research Projects Agency (DARPA) commissioned the development of a network that would allow research centers to communicate during nuclear attack. It had to be able to operate independently so that if one machine quit working the network would still work.
The first version was called ARPANET, but it proved costly to expand and a better alternative was sought. TCP/IP came about as a result. It was less costly to implement and required fewer network resources. In 1983, TCP/IP was added to Berkeley Software Distribution (BSD) UNIX Release 4.2.
TCP/IP standards are published in a series of documents called Request for Comments (RFCs). RFCs describe network services or protocols or summarize policies. ...