“TCP implementations will follow a general principle of robustness: be conservative in what you do, be liberal in what you accept from others.”

— Jon Postel, RFC 793: Transmission Control Protocol

The "Robustness Principle", RFC 793 http://www.ietf.org/rfc/rfc0793.txt, Transmission Control Protocol, entire text of section 2.10 (September 1981).

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Jon Postel7

American computer scientist 1943–1998

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RFC 791 http://www.ietf.org/rfc/rfc0791.txt, Internet Protocol (September 1981) <br class="br">Often shortened to Be liberal in what you accept, and conservative in what you send.

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