Network Control Protocol (ARPANET) (English Wikipedia)

J. Reynolds; J. Postel (November 1987). THE REQUEST FOR COMMENTS REFERENCE GUIDE. Network Working Group. doi:10.17487/RFC1000. RFC 1000. Status Unknown. Obsoletes RFC 84, 100, 160, 170, 200, 598, 699, 800, 899 and 999. Over the next few months we designed a symmetric host-host protocol, and we defined an abstract implementation of the protocol known as the Network Control Program. ("NCP" later came to be used as the name for the protocol, but it originally meant the program within the operating system that managed connections. The protocol itself was known blandly only as the host-host protocol.)
S. Sluizer; J. Postel (September 1980). MAIL TRANSFER PROTOCOL. Network Working Group. doi:10.17487/RFC0772. RFC 772. Status Unknown. Obsoleted by RFC 780, 821, 974, 1870 and 1869.
A. McKenzie; S. Crocker (April 2012). Host/Host Protocol for the ARPA Network. Independent Submission. doi:10.17487/RFC6529. ISSN 2070-1721. RFC 6529. Historic.
S. Crocker (9 June 1970). An Official Protocol Mechanism. Network Working Group. doi:10.17487/RFC0053. RFC 53. Status Unknown.
S. Crocker; C. Carr; V. Cerf (12 February 1970). New HOST-HOST Protocol. Network Working Group. doi:10.17487/RFC0033. RFC 33. Status Unknown. p. 4. Obsoletes RFC 11. Updated by RFC 36 and 47. Processes within a HOST communicate with the network through a Network Control Program (NCP).^{[nb 3]}
J. Reynolds; J. Postel (November 1987). THE REQUEST FOR COMMENTS REFERENCE GUIDE. Network Working Group. doi:10.17487/RFC1000. RFC 1000. Status Unknown. Obsoletes RFC 84, 100, 160, 170, 200, 598, 699, 800, 899 and 999.
New HOST-HOST Protocol. doi:10.17487/RFC0033. RFC 33. Retrieved 2022-08-04.
Postel, J. (November 1981). "The General Plan". NCP/TCP transition plan. IETF. p. 2. doi:10.17487/RFC0801. RFC 801. Retrieved February 1, 2011.

googleblog.blogspot.co.uk

"Marking the birth of the modern-day Internet". Google Official Blog. 1 January 2013. Retrieved 19 September 2015.

ietf.org

datatracker.ietf.org

J. Reynolds; J. Postel (November 1987). THE REQUEST FOR COMMENTS REFERENCE GUIDE. Network Working Group. doi:10.17487/RFC1000. RFC 1000. Status Unknown. Obsoletes RFC 84, 100, 160, 170, 200, 598, 699, 800, 899 and 999. Over the next few months we designed a symmetric host-host protocol, and we defined an abstract implementation of the protocol known as the Network Control Program. ("NCP" later came to be used as the name for the protocol, but it originally meant the program within the operating system that managed connections. The protocol itself was known blandly only as the host-host protocol.)
S. Sluizer; J. Postel (September 1980). MAIL TRANSFER PROTOCOL. Network Working Group. doi:10.17487/RFC0772. RFC 772. Status Unknown. Obsoleted by RFC 780, 821, 974, 1870 and 1869.
A. McKenzie; S. Crocker (April 2012). Host/Host Protocol for the ARPA Network. Independent Submission. doi:10.17487/RFC6529. ISSN 2070-1721. RFC 6529. Historic.
S. Crocker (9 June 1970). An Official Protocol Mechanism. Network Working Group. doi:10.17487/RFC0053. RFC 53. Status Unknown.
S. Crocker; C. Carr; V. Cerf (12 February 1970). New HOST-HOST Protocol. Network Working Group. doi:10.17487/RFC0033. RFC 33. Status Unknown. p. 4. Obsoletes RFC 11. Updated by RFC 36 and 47. Processes within a HOST communicate with the network through a Network Control Program (NCP).^{[nb 3]}
J. Reynolds; J. Postel (November 1987). THE REQUEST FOR COMMENTS REFERENCE GUIDE. Network Working Group. doi:10.17487/RFC1000. RFC 1000. Status Unknown. Obsoletes RFC 84, 100, 160, 170, 200, 598, 699, 800, 899 and 999.
New HOST-HOST Protocol. doi:10.17487/RFC0033. RFC 33. Retrieved 2022-08-04.
Postel, J. (November 1981). "The General Plan". NCP/TCP transition plan. IETF. p. 2. doi:10.17487/RFC0801. RFC 801. Retrieved February 1, 2011.

isoc.org

elists.isoc.org

Crocker, Stephen (27 June 2022). "Separation of TCP and IP". elists.isoc.org. Retrieved 5 August 2022.

livinginternet.com

Crocker, Stephen. "NCP -- Network Control Program". Living Internet.com. Retrieved 22 February 2022.
"NCP, Network Control Program". LivingInternet. Retrieved 2022-12-26.

postel.org

"Internetting or Beyond NCP" (PDF). Retrieved 4 August 2022.

rfc-editor.org

Proposed Revisions to the TCP (PDF). IEN 18. Retrieved 4 August 2022.
Snively, Jack (1982-11-01). "DoD Network Newsletter". Retrieved 2025-01-30.
"DoD Network Newsletter". 1983-06-17. Retrieved 2025-01-30.

telegraph.co.uk

"Internet celebrates 40th birthday: but what date should we be marking?". The Telegraph. 2 September 2009. Retrieved 19 September 2015.

web.archive.org

Heart, F.; McKenzie, A.; McQuillian, J.; Walden, D. (January 4, 1978). Arpanet Completion Report (PDF) (Technical report). Burlington, MA: Bolt, Beranek and Newman. p. III-63.

worldcat.org

search.worldcat.org

A. McKenzie; S. Crocker (April 2012). Host/Host Protocol for the ARPA Network. Independent Submission. doi:10.17487/RFC6529. ISSN 2070-1721. RFC 6529. Historic.