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Getting the Correct Time From an NTP Source

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Posted: 30 Apr 2002
 

This tip was respectfully gleaned from TID 10011518.

Network Time Protocol (NTP) provides a means for networked computers to serve and maintain accurate time on the Internet. Using NTP to poll time from External Time source over TCP/IP is easy with NetWare 5.

  1. If the server is a NetWare 5.0 server, then install Support Pack 5 or later. If the server is a NetWare 5.1 server, then install Support Pack 1 or later.
  2. On the SINGLE or REFERENCE time server, load MONITOR.NLM | Server Parameters | Time, and change the following parameters
    TIMESYNC Configured Sources = ON
    TIMESYNC Time Sources = IP_address_of_Internet_time_source:123; Where 123 is the NTP port on that time source.
  3. Example: TIMESYNC Time Sources = 129.7.1.66:123;
  4. Verify the Timesync configuration information has been updated / changed in the SYS:SYSTEM\TIMESYNC.CFG and SYS:SYSTEM\AUTOEXEC.NCF files.
  5. At the console prompt, Unload TIMESYNC, Load TIMESYNC

Possible Internet Time sources:

  • U.S. Naval Observatory - 192.5.41.209:123;
  • Lawrence Livermore National Laboratory - 128.115.14.97:123;
  • NASA Ames Research Center - ntp.nasa.com:123;
  • MIT - 129.7.1.66:123;
  • NIST Central Computer Facility - 129.6.16.36:123;


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