Copyright Notice

Last update: April 3, 2026 13:07 UTC (d55043aa0)

The following copyright notice applies to all files collectively called the Network Time Protocol Version 3 Distribution. Unless specifically declared otherwise in an individual file, this notice applies as if the text was explicitly included in the file.

/***********************************************************************
 *                                                                     *
 * Copyright (c) David L. Mills 1992, 1993, 1994, 1995, 1996, 1997     *
 *                                                                     *
 * Permission to use, copy, modify, and distribute this software and   *
 * its documentation for any purpose and without fee is hereby         *
 * granted, provided that the above copyright notice appears in all    *
 * copies and that both the copyright notice and this permission       *
 * notice appear in supporting documentation, and that the name        *
 * University of Delaware not be used in advertising or publicity      *
 * pertaining to distribution of the software without specific,        *
 * written prior permission. The University of Delaware makes no       *
 * representations about the suitability this software for any         *
 * purpose. It is provided "as is" without express or implied          *
 * warranty.                                                           *
 **********************************************************************/

The following individuals contributed in part to the Network Time Protocol Distribution Version 4 and are acknowledged as authors of this work.

  1. Mark Andrews: Leitch atomic clock controller
  2. Viraj Bais and Clayton Kirkwood: port to WindowsNT 3.5
  3. Karl Berry: syslog to file option
  4. Piete Brooks MSF clock driver, Trimble PARSE support
  5. Steve Clift: OMEGA clock driver
  6. Casey Crellin: vxWorks (Tornado) port and help with target configuration
  7. Torsten Duwe Linux Port
  8. John A. Dundas III: Apple A/UX port
  9. Dennis Ferguson: foundation code for NTP Version 2 as specified in RFC-1119
  10. Glenn Hollinger: GOES clock driver
  11. Mike Iglesias DEC Alpha port
  12. Jim Jagielski: A/UX port
  13. Jeff Johnson: massive prototyping overhaul
  14. William L. Jones: RS/6000 AIX modifications, HPUX modifications
  15. Dave Katz RS/6000 AIX port
  16. Craig Leres 4.4BSD port, ppsclock, Maganavox GPS clock driver
  17. George Lindholm SunOS 5.1 port
  18. Louis A. Mamakos: MD5-based authentication
  19. Derek Mulcahy and Damon Hart-Davis ARCRON MSF clock driver
  20. Lars H. Mathiesen adaptation of foundation code for Version 3 as specified in RFC-1305
  21. David L. Mills Spectractom WWVB, Austron GPS, Arbiter GPS, Heath, ATOM, ACTS, KSI/Odetics IRIG-B clock drivers; PPS support
  22. Wolfgang Moeller: VMS port
  23. Jeffrey Mogul: ntptrace utility
  24. Tom Moore: i386 svr4 port
  25. Rainer Pruy monitoring/trap scripts, statistics file handling
  26. Dirce Richards: Digital UNIX V4.0 port
  27. Nick Sayer: SunOS streams modules
  28. Frank Kardel email PARSE driver (14 reference clocks), STREAMS modules for PARSE, support scripts, syslog cleanup
  29. Ray Schnitzler: Unixware1 port
  30. Michael Shields USNO clock driver
  31. Jeff Steinman: Datum PTS clock driver
  32. Harlan Stenn GNU automake/autoconfigure makeover
  33. Kenneth Stone: HP-UX port
  34. Ajit Thyagarajan IP multicast support
  35. Tomoaki TSURUOKA: TRAK clock driver
  36. Paul A Vixie TrueTime GPS driver, generic TrueTime clock driver
  37. Ulrich Windl Corrected and validated HTML documents according to the HTML DTD