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- The ntp Directory
-
- This directory and its subdirectories contain the various distributions
- of the Network Time Protocol (NTP), together with related auxilliary
- programs, documentation and strange stuff. You are welcome to the lot,
- with due consideration of the COPYRIGHT files stashed in the
- distributions. You are also invited to contribute bugfixes and drivers
- for new and exotic radios, telephones and sundials.
-
- The base directory ~ntp/pub/ntp contains the distributions and related
- stuff, including:
-
- msctime.tar.Z compressed tar archive containing the NBS Automated
- Comuter Time Service software, ported to Microsoft C for
- IBM PC and Unix C for Sun workstations
-
- nbstime.tar.Z compressed tar archive containing the NBS Automated
- Comuter Time Service software, as distributed by NBS
-
- ntp.3.4 subdirectory containing the NTP Version 1 daemon for
- Unix written by Michael Petry and Louis Mamakos of the
- University of Maryland. Not recommended for new
- installations.
-
- xntp subdirectory containing the NTP Version 2 daemon for
- Unix written by Dennis Fergusson of the University of
- Toronto. Not recoommended for new installations.
-
- xntp3.tar.Z compressed tar archive containing the NTP Version 3
- daemon for Unix adapted from the version-3 daemon by
- Lars Mathiesen of the University of Copenhagen and many
- of his friends. Restricted for use in the US and Canada.
-
- xntp3.export.tar.Z compressed tar archive containing the NTP Version 3
- daemon for Unix adapted from the version-3 daemon by
- Lars Mathiesen of the University of Copenhagen and many
- of his friends. Unrestricted distribution. Requires a
- software implementation of the Data Encryption Standard
- readily available outside the U.S. and Canada.
-
- loran.tar.Z compressed tar archive containing the schematics,
- artwork and documentation for a computer-controlled
- LORAN-C timing receiver used as a precision source of
- standard time. Not recommended for beginners.
-
- gadget.tar.Z compressed tar archive containing the schematics,
- artwork and related information for (a) a modem for the
- Canadian time/frequency radio service CHU, which can be
- used as a primary reference clock for NTP Version 2 and
- Version 3 daemons, and (b) a pulse shaper and line
- driver used to provide an external one-pulse-per-second
- signal from a radio clock to a serial port.
-
- minimuf.c, gain.dat program in C and data file in ascii for a program
- that computes high frequency radio propagation data and
- delays between two geographic locations on the Earth.
- This is intended for use in setting propagation-delay
- switches on radio clocks.
-
- jaguar.txt.Z Job description for a Maya high priest taken from the
- Book of Chillum Balum. Useful for after-dinner rallies
- and cheerleaders.
-
- info.txt.Z compressed file containing useful hints and kinks on
- setting up NTP service
-
- The doc subdirectory includes a number of compressed files containing
- papers, rfcs and technical reports on NTP. Those with names ending in
- *.ps.Z are in PostScript, while the others are in ascii. When the same
- document is displayed with *.ps.Z and *.txt.Z extension, the latter
- version is an ascii-greppable file that may not violate the Principle of
- Least Astonishment with respect to the former version; however, much is
- lost in translation.
-
- bishop.ps.Z compressed file containing a draft of a report by Matt
- Bishop discussing security issues in NTP
-
- bone.ps.Z compressed file containing a paper on the NSFnet Phase-I
- Backbone Network, in which NTP played a prominent part.
- Of historic interest.
-
- Mills, D.L., and H.-W. Braun. The NSFNET Backbone
- Network. Proc. ACM SIGCOMM 87 Symposium (Stoweflake
- Vermont, August 1987), 191-196.
-
- ccr.ps.Z, ccr.txt.Z compressed PostScript and ascii files for a paper on
- practice and experience operating NTP in the global
- Internet
-
- Mills, D.L. On the accuracy and stability of clocks
- synchronized by the Network Time Protocol in the
- Internet system. ACM Computer Communication Review 20, 1
- (January 1990), 65-75.
-
- clock.txt ascii file containing (a) a list of primary (stratum 1)
- servers operating in the Internet, (b) a list of
- secondary (stratum 2) servers operating in the Internet,
- (c) a list of known radio timecode receivers along with
- addresses and phone numbers of the suppliers, (d) bits
- of riffraff information that defy classification. This
- file is updated on a haphazard basis at irregular
- intervals.
-
- dts.txt.Z, dtsrev.txt.Z compressed files containing unpublished message
- digests comparing NTP and the Digital Time
- Synchronization Service (DTSS). Note: this is an
- informal discussion and should not be quoted or
- extracted from context, even with attribution.
-
- fuzz.ps.Z compressed file for a paper describing the infamous
- Fuzzball operating system and culture for the PDP11 and
- relatives. When the last fuzzball dies, this will be of
- historic interest only.
-
- Mills, D.L. The Fuzzball. Proc. ACM SIGCOMM 88 Symposium
- (Palo Alto, California, August 1988), 115-122.
-
- ndp.ps.Z, ndp.txt.Z compressed files for an unpublished technical
- memorandum comparing NTP and the Digital Time
- Synchronization Service (DTSS). Note: this memorandum is
- intended for professional use only and may not be cited
- or excerpted without the consent of the author.
-
- ntpinfo.Z compressed file containing useful hints and kinks on
- setting up NTP service
-
- rfc1119.ps.Z, rfc1119.txt.Z compressed files for the NTP Version 2
- specification. Of historic interest.
-
- Mills, D.L. Network Time Protocol (Version 2)
- specification and implementation. DARPA Network Working
- Group Report RFC-1119, University of Delaware, September
- 1989. Also published as: Electrical Engineering
- Department Report 89-9-2, University of Delaware,
- September 1989.
-
- rfc1128.ps.Z, rfc1128.txt.Z compressed files for rfc1128 available from
- Internet archive sites
-
- Mills, D.L. Measured performance of the Network Time
- Protocol in the Internet system. DARPA Network Working
- Group Report RFC-1128, University of Delaware, October
- 1989. Also published as: Electrical Engineering
- Department Report 89-9-3, University of Delaware,
- September 1989.
-
- rfc1129.ps.Z, rfc1129.txt.Z compressed files for rfc1128 available from
- Internet archive sites
-
- Mills, D.L. Internet time synchronization: the Network
- Time Protocol. DARPA Network Working Group Report RFC-
- 1129, University of Delaware, October 1989. Also
- published as: Electrical Engineering Department Report
- 89-9-1, University of Delaware, September 1989.
-
- rfc11305.tar.Z compressed tar archive for rfc1305 available from
- Internet archive sites
-
- rfc1305a.ps.Z, rfc1306b.ps.Z, rfc1306c.ps.Z compressed files for rfc1305
- available from Internet archive sites
-
- Mills, D.L. Network Time Protocol (Version 3)
- specification, implementation and analysis. DARPA
- Network Working Group Report RFC-1305, University of
- Delaware, March 1992, 113 pp. Previous draft published
- as: Electrical Engineering Department Report 90-6-1,
- University of Delaware, June 1990.
-
- rfc1361.txt compressed file for rfc1361 available from Internet
- archive sites
-
- Mills, D.L. Simple Network Time Protocol (SNTP). DARPA
- Network Working Group Report RFC-1361, University of
- Delaware, August 1992, 10 pp.
-
- time.ps.Z, time.txt.Z compressed files for the paper discussing issues
- in timescales, calendrics and associated mythology
-
- Mills, D.L. On the chronology and metrology of computer
- network timescales and their application to the Network
- Time Protocol. ACM Computer Communications Review 21, 5
- (October 1991), 8-17.
-
- timex.tar.Z compressed tar archive of files for a technical report
- on unbelievable intracies only a mother clock would love
-
- Mills, D.L. Modelling and analysis of computer network
- clocks. Electrical Engineering Department Report 92-5-2,
- University of Delaware, May 1992, 29 pp.
-
- trans.ps.Z, trans.txt.Z compressed files for a paper describing the
- architecture and protocol design of NTP
-
- Mills, D.L. Internet time synchronization: the Network
- Time Protocol. IEEE Trans. Communications 39, 10
- (October 1991), 1482-1493.
- wiretap.ps.Z Compressed PostScript file for a paper on routing in
- packet-radio networks. Off the wall, but whattheheck
-
- Mills, D.L. Wiretap: an experimental multiple-path
- routing algorithm. ACM Computer Communication Review 19,
- 1 (January 1989), 85-98.
-