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<?xml version="1.0" encoding="latin1" ?>
<!DOCTYPE chapter SYSTEM "chapter.dtd">
<chapter>
<header>
<copyright>
<year>1997</year>
<year>2011</year>
<holder>Ericsson AB, All Rights Reserved</holder>
</copyright>
<legalnotice>
The contents of this file are subject to the Erlang Public License,
Version 1.1, (the "License"); you may not use this file except in
compliance with the License. You should have received a copy of the
Erlang Public License along with this software. If not, it can be
retrieved online at http://www.erlang.org/.
Software distributed under the License is distributed on an "AS IS"
basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
the License for the specific language governing rights and limitations
under the License.
The Initial Developer of the Original Code is Ericsson AB.
</legalnotice>
<title>XNTP (Network Time Protocol)</title>
<prepared>ETX/B/SFP Kenneth Lundin</prepared>
<responsible></responsible>
<docno>1</docno>
<approved>ETX/B/SFP (Kenneth Lundin)</approved>
<checked></checked>
<date>1996-11-20</date>
<rev>A</rev>
<file>xntp.sgml</file>
</header>
<p>This chapter describes the OS specific part of OTP that relates
to the Network Time Protocol (XNTP).
</p>
<section>
<title>XNTP for Sunos5</title>
<p>XNTP maintains a Unix system time-of-day which conforms with
the Internet standard time servers. XNTP is a complete
implementation of the Network Time Protocol, version 3
specification as defined in RFC 1305.
</p>
<p>XNTP for use in an <em>embedded system running Sunos5</em> is
delivered with OTP. The XNTP is delivered as a separate
<c>tar</c> file which also includes extensive documentation and
installation instructions.
</p>
<p>The following section of the introductory documentation is
included in the distribution:
</p>
<quote>
<p>The Network Time Protocol (NTP) is used to synchronize the
time of a computer client or server to another server or
reference time source, such as a radio or satellite receiver
or modem. It provides client accuracies typically within a
millisecond on LANs and up to a few tens of milliseconds on
WANs relative to a primary server synchronized to Coordinated
Universal Time (UTC) via a Global Positioning Service (GPS)
receiver, for example. Typical NTP configurations utilize
multiple redundant servers and diverse network paths, in order
to achieve high accuracy and reliability. ...</p>
</quote>
<p>The XNTP software is supplied without charge under the
conditions set forth in the Copyright Notice provided within the
distribution.
</p>
<p>(© David L. Mills 1992, 1993, 1994, 1995, 1996)
</p>
</section>
</chapter>
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