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<h3>
Eric S. Raymond pushed to branch master
at <a href="https://gitlab.com/NTPsec/ntpsec">NTPsec / ntpsec</a>
</h3>
<h4>
Commits:
</h4>
<ul>
<li>
<strong><a href="https://gitlab.com/NTPsec/ntpsec/commit/2e1da2e120531377908f935f8ffa7e7df4d1d1a1">2e1da2e1</a></strong>
<div>
<span>by Eric S. Raymond</span>
<i>at 2019-01-13T00:22:51Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Added the history document.
</pre>
</li>
<li>
<strong><a href="https://gitlab.com/NTPsec/ntpsec/commit/7771778e1cd2ad854c3ca9115f9447f9a93267d4">7771778e</a></strong>
<div>
<span>by Eric S. Raymond</span>
<i>at 2019-01-13T00:22:51Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Link the history documrnt to the index page.
</pre>
</li>
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<h4>2 changed files:</h4>
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<a href="#ea4bcc9cffb6b515fc87c564938df2bf5a0634dd">
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+
docs/history.adoc
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<a href="#8ef4b4f93f17d2271dc4cedb9a136e5f7644f30b">
docs/index.adoc
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<h4>Changes:</h4>
<li id="ea4bcc9cffb6b515fc87c564938df2bf5a0634dd">
<a href="https://gitlab.com/NTPsec/ntpsec/compare/b02d25a608fd2b8a8b1734236520ca1d9a0804ff...7771778e1cd2ad854c3ca9115f9447f9a93267d4#ea4bcc9cffb6b515fc87c564938df2bf5a0634dd"><strong>docs/history.adoc</strong></a>
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<pre style="margin: 0;">+<span id="LC1" class="line" lang="mosel"><span class="p">==</span> <span class="n" style="color: #333;">History</span> <span class="k" style="font-weight: 600;">of</span> <span class="n" style="color: #333;">NTP</span> <span class="p">==</span></span>
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<pre style="margin: 0;">+<span id="LC2" class="line" lang="mosel"></span>
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<pre style="margin: 0;">+<span id="LC3" class="line" lang="mosel"><span class="p">//</span> <span class="n" style="color: #333;">Early</span> <span class="n" style="color: #333;">history</span> <span class="n" style="color: #333;">was</span> <span class="n" style="color: #333;">found</span> <span class="n" style="color: #333;">at</span> <span class="n" style="color: #333;">https</span><span class="p">://</span><span class="n" style="color: #333;">www</span><span class="p">.</span><span class="n" style="color: #333;">galsys</span><span class="p">.</span><span class="n" style="color: #333;">co</span><span class="p">.</span><span class="n" style="color: #333;">uk</span><span class="p">/</span><span class="n" style="color: #333;">about</span><span class="p">-</span><span class="n" style="color: #333;">NTP</span><span class="p">.</span><span class="n" style="color: #333;">html</span></span>
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<pre style="margin: 0;">+<span id="LC4" class="line" lang="mosel"></span>
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<pre style="margin: 0;">+<span id="LC5" class="line" lang="mosel"><span class="n" style="color: #333;">The</span> <span class="n" style="color: #333;">first</span> <span class="n" style="color: #333;">NTP</span> <span class="n" style="color: #333;">implementation</span> <span class="n" style="color: #333;">started</span> <span class="n" style="color: #333;">around</span> <span class="m" style="color: #099;">1980</span> <span class="k" style="font-weight: 600;">with</span> <span class="n" style="color: #333;">an</span> <span class="n" style="color: #333;">accuracy</span> <span class="k" style="font-weight: 600;">of</span></span>
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<td class="diff-line-num new new_line" data-linenumber="6" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC6" class="line" lang="mosel"><span class="n" style="color: #333;">only</span> <span class="n" style="color: #333;">several</span> <span class="n" style="color: #333;">hundred</span> <span class="n" style="color: #333;">milliseconds</span><span class="p">.</span> <span class="n" style="color: #333;">That</span> <span class="n" style="color: #333;">very</span> <span class="n" style="color: #333;">first</span> <span class="n" style="color: #333;">implementation</span> <span class="n" style="color: #333;">was</span></span>
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<pre style="margin: 0;">+<span id="LC7" class="line" lang="mosel"><span class="n" style="color: #333;">documented</span> <span class="k" style="font-weight: 600;">in</span> <span class="n" style="color: #333;">Internet</span> <span class="n" style="color: #333;">Engineering</span> <span class="n" style="color: #333;">Note</span></span>
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<td class="diff-line-num new new_line" data-linenumber="8" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC8" class="line" lang="mosel"><span class="n" style="color: #333;">https</span><span class="p">://</span><span class="n" style="color: #333;">www</span><span class="p">.</span><span class="n" style="color: #333;">rfc</span><span class="p">-</span><span class="n" style="color: #333;">editor</span><span class="p">.</span><span class="n" style="color: #333;">org</span><span class="p">/</span><span class="n" style="color: #333;">ien</span><span class="p">/</span><span class="n" style="color: #333;">ien175</span><span class="p">.</span><span class="n" style="color: #333;">txt</span><span class="p">[</span><span class="n" style="color: #333;">IEN</span><span class="p">-</span><span class="m" style="color: #099;">173</span><span class="p">].</span> <span class="n" style="color: #333;">Later</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">first</span></span>
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<pre style="margin: 0;">+<span id="LC9" class="line" lang="mosel"><span class="n" style="color: #333;">specification</span> <span class="n" style="color: #333;">appeared</span> <span class="k" style="font-weight: 600;">in</span></span>
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<pre style="margin: 0;">+<span id="LC10" class="line" lang="mosel"><span class="n" style="color: #333;">https</span><span class="p">://</span><span class="n" style="color: #333;">www</span><span class="p">.</span><span class="n" style="color: #333;">rfc</span><span class="p">-</span><span class="n" style="color: #333;">editor</span><span class="p">.</span><span class="n" style="color: #333;">org</span><span class="p">/</span><span class="n" style="color: #333;">rfc</span><span class="p">/</span><span class="n" style="color: #333;">rfc778</span><span class="p">.</span><span class="n" style="color: #333;">txt</span><span class="p">[</span><span class="n" style="color: #333;">RFC</span> <span class="m" style="color: #099;">778</span><span class="p">],</span> <span class="n" style="color: #333;">but</span> <span class="n" style="color: #333;">it</span> <span class="n" style="color: #333;">was</span> <span class="n" style="color: #333;">still</span></span>
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<pre style="margin: 0;">+<span id="LC11" class="line" lang="mosel"><span class="n" style="color: #333;">named</span> <span class="n" style="color: #333;">Internet</span> <span class="n" style="color: #333;">Clock</span> <span class="n" style="color: #333;">Service</span><span class="p">.</span> <span class="n" style="color: #333;">At</span> <span class="n" style="color: #333;">that</span> <span class="n" style="color: #333;">time</span> <span class="n" style="color: #333;">clock</span> <span class="n" style="color: #333;">synchronization</span> <span class="n" style="color: #333;">was</span></span>
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<td class="diff-line-num new new_line" data-linenumber="12" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC12" class="line" lang="mosel"><span class="n" style="color: #333;">needed</span> <span class="n" style="color: #333;">for</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">HELLO</span> <span class="n" style="color: #333;">routing</span> <span class="n" style="color: #333;">protocol</span><span class="p">.</span> <span class="n" style="color: #333;">NTP</span> <span class="n" style="color: #333;">was</span> <span class="n" style="color: #333;">introduced</span> <span class="k" style="font-weight: 600;">in</span></span>
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<pre style="margin: 0;">+<span id="LC13" class="line" lang="mosel"><span class="n" style="color: #333;">https</span><span class="p">://</span><span class="n" style="color: #333;">tools</span><span class="p">.</span><span class="n" style="color: #333;">ietf</span><span class="p">.</span><span class="n" style="color: #333;">org</span><span class="p">/</span><span class="n" style="color: #333;">rfc</span><span class="p">/</span><span class="n" style="color: #333;">rfc958</span><span class="p">.</span><span class="n" style="color: #333;">txt</span><span class="p">[</span><span class="n" style="color: #333;">RFC</span> <span class="m" style="color: #099;">958</span><span class="p">]</span> <span class="n" style="color: #333;">for</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">first</span> <span class="n" style="color: #333;">time</span><span class="p">,</span></span>
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<td class="diff-line-num new new_line" data-linenumber="14" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
14
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<pre style="margin: 0;">+<span id="LC14" class="line" lang="mosel"><span class="n" style="color: #333;">mainly</span> <span class="n" style="color: #333;">describing</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">packets</span> <span class="n" style="color: #333;">seen</span> <span class="n" style="color: #333;">on</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">network</span> <span class="k" style="font-weight: 600;">as</span> <span class="n" style="color: #333;">well</span> <span class="k" style="font-weight: 600;">as</span> <span class="n" style="color: #333;">some</span></span>
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<td class="diff-line-num new new_line" data-linenumber="15" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
15
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<pre style="margin: 0;">+<span id="LC15" class="line" lang="mosel"><span class="n" style="color: #333;">basic</span> <span class="n" style="color: #333;">calculations</span> <span class="n" style="color: #333;">involved</span><span class="p">.</span> <span class="n" style="color: #333;">Early</span> <span class="n" style="color: #333;">versions</span> <span class="k" style="font-weight: 600;">of</span> <span class="n" style="color: #333;">NTP</span> <span class="n" style="color: #333;">did</span> <span class="k" style="font-weight: 600;">not</span> <span class="n" style="color: #333;">compensate</span></span>
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<td class="diff-line-num new new_line" data-linenumber="16" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
16
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<pre style="margin: 0;">+<span id="LC16" class="line" lang="mosel"><span class="n" style="color: #333;">any</span> <span class="n" style="color: #333;">frequency</span> <span class="n" style="color: #333;">error</span><span class="p">.</span></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="17" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
17
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<pre style="margin: 0;">+<span id="LC17" class="line" lang="mosel"></span>
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<td class="diff-line-num new old_line" data-linenumber="0" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="18" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC18" class="line" lang="mosel"><span class="n" style="color: #333;">The</span> <span class="n" style="color: #333;">first</span> <span class="n" style="color: #333;">complete</span> <span class="n" style="color: #333;">specification</span> <span class="k" style="font-weight: 600;">of</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">protocol</span> <span class="k" style="font-weight: 600;">and</span> <span class="n" style="color: #333;">accompanying</span></span>
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<td class="diff-line-num new old_line" data-linenumber="0" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="19" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC19" class="line" lang="mosel"><span class="n" style="color: #333;">algorithms</span> <span class="n" style="color: #333;">for</span> <span class="n" style="color: #333;">NTP</span> <span class="k" style="font-weight: 600;">version</span> <span class="m" style="color: #099;">1</span> <span class="n" style="color: #333;">appeared</span> <span class="m" style="color: #099;">1988</span> <span class="k" style="font-weight: 600;">in</span></span>
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<td class="diff-line-num new new_line" data-linenumber="20" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC20" class="line" lang="mosel"><span class="n" style="color: #333;">https</span><span class="p">://</span><span class="n" style="color: #333;">tools</span><span class="p">.</span><span class="n" style="color: #333;">ietf</span><span class="p">.</span><span class="n" style="color: #333;">org</span><span class="p">/</span><span class="n" style="color: #333;">rfc</span><span class="p">/</span><span class="n" style="color: #333;">rfc1059</span><span class="p">.</span><span class="n" style="color: #333;">txt</span><span class="p">[</span><span class="n" style="color: #333;">RFC</span> <span class="m" style="color: #099;">1059</span><span class="p">].</span> <span class="n" style="color: #333;">That</span> <span class="k" style="font-weight: 600;">version</span> <span class="n" style="color: #333;">already</span></span>
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<td class="diff-line-num new new_line" data-linenumber="21" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC21" class="line" lang="mosel"><span class="n" style="color: #333;">had</span> <span class="n" style="color: #333;">symmetric</span> <span class="n" style="color: #333;">operation</span> <span class="n" style="color: #333;">mode</span> <span class="k" style="font-weight: 600;">as</span> <span class="n" style="color: #333;">well</span> <span class="k" style="font-weight: 600;">as</span> <span class="n" style="color: #333;">client</span><span class="p">-</span><span class="n" style="color: #333;">server</span> <span class="n" style="color: #333;">mode</span><span class="p">.</span></span>
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<td class="diff-line-num new new_line" data-linenumber="22" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC22" class="line" lang="mosel"></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="23" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC23" class="line" lang="mosel"><span class="k" style="font-weight: 600;">Version</span> <span class="m" style="color: #099;">2</span> <span class="n" style="color: #333;">introducing</span> <span class="n" style="color: #333;">symmetric</span><span class="p">-</span><span class="n" style="color: #333;">key</span> <span class="n" style="color: #333;">authentication</span> <span class="p">(</span><span class="n" style="color: #333;">using</span> <span class="n" style="color: #333;">DES</span><span class="p">-</span><span class="n" style="color: #333;">CBC</span><span class="p">)</span> <span class="n" style="color: #333;">was</span></span>
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<td class="diff-line-num new new_line" data-linenumber="24" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC24" class="line" lang="mosel"><span class="n" style="color: #333;">described</span> <span class="k" style="font-weight: 600;">in</span> <span class="n" style="color: #333;">https</span><span class="p">://</span><span class="n" style="color: #333;">tools</span><span class="p">.</span><span class="n" style="color: #333;">ietf</span><span class="p">.</span><span class="n" style="color: #333;">org</span><span class="p">/</span><span class="n" style="color: #333;">rfc</span><span class="p">/</span><span class="n" style="color: #333;">rfc1119</span><span class="p">.</span><span class="n" style="color: #333;">txt</span><span class="p">[</span><span class="n" style="color: #333;">RFC</span> <span class="m" style="color: #099;">1119</span><span class="p">]</span> <span class="n" style="color: #333;">only</span></span>
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<td class="diff-line-num new new_line" data-linenumber="25" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC25" class="line" lang="mosel"><span class="n" style="color: #333;">about</span> <span class="n" style="color: #333;">one</span> <span class="n" style="color: #333;">year</span> <span class="n" style="color: #333;">later</span><span class="p">.</span> <span class="n" style="color: #333;">About</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">same</span> <span class="n" style="color: #333;">time</span> <span class="n" style="color: #333;">another</span> <span class="n" style="color: #333;">time</span> <span class="n" style="color: #333;">synchronization</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="0" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="26" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
26
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<pre style="margin: 0;">+<span id="LC26" class="line" lang="mosel"><span class="n" style="color: #333;">protocol</span> <span class="n" style="color: #333;">named</span> <span class="n" style="color: #333;">Digital</span> <span class="n" style="color: #333;">Time</span> <span class="n" style="color: #333;">Synchronization</span> <span class="n" style="color: #333;">Service</span> <span class="p">(</span><span class="n" style="color: #333;">DTSS</span><span class="p">)</span> <span class="n" style="color: #333;">was</span></span>
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<td class="diff-line-num new new_line" data-linenumber="27" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC27" class="line" lang="mosel"><span class="n" style="color: #333;">presented</span> <span class="n" style="color: #333;">by</span> <span class="n" style="color: #333;">Digital</span> <span class="n" style="color: #333;">Equipment</span> <span class="n" style="color: #333;">Corporation</span><span class="p">.</span> <span class="n" style="color: #333;">At</span> <span class="n" style="color: #333;">that</span> <span class="n" style="color: #333;">time</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">software</span></span>
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<pre style="margin: 0;">+<span id="LC28" class="line" lang="mosel"><span class="n" style="color: #333;">named</span> <span class="n" style="color: #333;">xntp</span> <span class="n" style="color: #333;">was</span> <span class="n" style="color: #333;">written</span> <span class="n" style="color: #333;">by</span> <span class="n" style="color: #333;">Dennis</span> <span class="n" style="color: #333;">Fergusson</span> <span class="n" style="color: #333;">at</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">University</span> <span class="k" style="font-weight: 600;">of</span></span>
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<pre style="margin: 0;">+<span id="LC29" class="line" lang="mosel"><span class="n" style="color: #333;">Toronto</span><span class="p">.</span> <span class="n" style="color: #333;">That</span> <span class="n" style="color: #333;">software</span> <span class="n" style="color: #333;">evolved</span> <span class="k" style="font-weight: 600;">to</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">software</span> <span class="n" style="color: #333;">distribution</span> <span class="n" style="color: #333;">that</span> <span class="n" style="color: #333;">is</span></span>
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<pre style="margin: 0;">+<span id="LC30" class="line" lang="mosel"><span class="n" style="color: #333;">publicly</span> <span class="n" style="color: #333;">available</span> <span class="n" style="color: #333;">now</span><span class="p">.</span></span>
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<pre style="margin: 0;">+<span id="LC31" class="line" lang="mosel"></span>
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<pre style="margin: 0;">+<span id="LC32" class="line" lang="mosel"><span class="n" style="color: #333;">Combining</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">good</span> <span class="n" style="color: #333;">ideas</span> <span class="k" style="font-weight: 600;">of</span> <span class="n" style="color: #333;">DTSS</span> <span class="k" style="font-weight: 600;">with</span> <span class="n" style="color: #333;">those</span> <span class="k" style="font-weight: 600;">of</span> <span class="n" style="color: #333;">NTP</span> <span class="n" style="color: #333;">produced</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">new</span></span>
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<pre style="margin: 0;">+<span id="LC33" class="line" lang="mosel"><span class="n" style="color: #333;">specification</span> <span class="n" style="color: #333;">for</span> <span class="n" style="color: #333;">NTP</span> <span class="k" style="font-weight: 600;">version</span> <span class="m" style="color: #099;">3</span><span class="p">,</span> <span class="n" style="color: #333;">namely</span></span>
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<pre style="margin: 0;">+<span id="LC34" class="line" lang="mosel"><span class="n" style="color: #333;">https</span><span class="p">://</span><span class="n" style="color: #333;">tools</span><span class="p">.</span><span class="n" style="color: #333;">ietf</span><span class="p">.</span><span class="n" style="color: #333;">org</span><span class="p">/</span><span class="n" style="color: #333;">rfc</span><span class="p">/</span><span class="n" style="color: #333;">rfc1992</span><span class="p">.</span><span class="n" style="color: #333;">txt</span><span class="p">[</span><span class="n" style="color: #333;">RFC</span> <span class="m" style="color: #099;">1305</span><span class="p">],</span> <span class="k" style="font-weight: 600;">in</span> <span class="m" style="color: #099;">1992.</span> <span class="n" style="color: #333;">That</span></span>
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<pre style="margin: 0;">+<span id="LC35" class="line" lang="mosel"><span class="k" style="font-weight: 600;">version</span> <span class="n" style="color: #333;">introduced</span> <span class="n" style="color: #333;">formal</span> <span class="n" style="color: #333;">correctness</span> <span class="n" style="color: #333;">principles</span> <span class="k" style="font-weight: 600;">and</span> <span class="n" style="color: #333;">revised</span></span>
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<pre style="margin: 0;">+<span id="LC36" class="line" lang="mosel"><span class="n" style="color: #333;">algorithms</span><span class="p">.</span> <span class="n" style="color: #333;">Furthermore</span> <span class="n" style="color: #333;">broadcast</span> <span class="n" style="color: #333;">mode</span> <span class="n" style="color: #333;">was</span> <span class="n" style="color: #333;">added</span> <span class="k" style="font-weight: 600;">to</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">protocol</span><span class="p">.</span></span>
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<pre style="margin: 0;">+<span id="LC37" class="line" lang="mosel"></span>
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<pre style="margin: 0;">+<span id="LC38" class="line" lang="mosel"><span class="k" style="font-weight: 600;">While</span> <span class="n" style="color: #333;">NTP</span> <span class="n" style="color: #333;">per</span> <span class="n" style="color: #333;">se</span> <span class="n" style="color: #333;">only</span> <span class="n" style="color: #333;">deals</span> <span class="k" style="font-weight: 600;">with</span> <span class="n" style="color: #333;">adjusting</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">operating</span> <span class="nf" style="color: #900; font-weight: 600;">system</span><span class="s1" style="color: #d14;">'s</span></span>
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<pre style="margin: 0;">+<span id="LC39" class="line" lang="mosel"><span class="s1" style="color: #d14;">clock, there was some parallel research on improving time keeping</span></span>
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<pre style="margin: 0;">+<span id="LC40" class="line" lang="mosel"><span class="s1" style="color: #d14;">within the operating system'</span><span class="n" style="color: #333;">s</span></span>
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<pre style="margin: 0;">+<span id="LC41" class="line" lang="mosel"><span class="n" style="color: #333;">kernel</span><span class="p">.</span> <span class="n" style="color: #333;">https</span><span class="p">://</span><span class="n" style="color: #333;">tools</span><span class="p">.</span><span class="n" style="color: #333;">ietf</span><span class="p">.</span><span class="n" style="color: #333;">org</span><span class="p">/</span><span class="n" style="color: #333;">rfc</span><span class="p">/</span><span class="n" style="color: #333;">rfc1589</span><span class="p">.</span><span class="n" style="color: #333;">txt</span><span class="p">[</span><span class="n" style="color: #333;">RFC</span> <span class="m" style="color: #099;">1589</span><span class="p">]</span> <span class="p">(</span><span class="n" style="color: #333;">A</span> <span class="n" style="color: #333;">kernel</span></span>
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<pre style="margin: 0;">+<span id="LC42" class="line" lang="mosel"><span class="k" style="font-weight: 600;">model</span> <span class="n" style="color: #333;">for</span> <span class="n" style="color: #333;">precision</span> <span class="n" style="color: #333;">timekeeping</span><span class="p">)</span> <span class="n" style="color: #333;">described</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">new</span> <span class="n" style="color: #333;">implementation</span> <span class="k" style="font-weight: 600;">and</span></span>
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<pre style="margin: 0;">+<span id="LC43" class="line" lang="mosel"><span class="n" style="color: #333;">interface</span> <span class="k" style="font-weight: 600;">in</span> <span class="m" style="color: #099;">1994.</span> <span class="n" style="color: #333;">That</span> <span class="n" style="color: #333;">implementation</span> <span class="n" style="color: #333;">could</span> <span class="n" style="color: #333;">keep</span> <span class="n" style="color: #333;">time</span> <span class="k" style="font-weight: 600;">with</span> <span class="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;">+<span id="LC44" class="line" lang="mosel"><span class="n" style="color: #333;">precision</span> <span class="k" style="font-weight: 600;">of</span> <span class="n" style="color: #333;">up</span> <span class="k" style="font-weight: 600;">to</span> <span class="n" style="color: #333;">one</span> <span class="n" style="color: #333;">microsecond</span><span class="p">.</span></span>
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<pre style="margin: 0;">+<span id="LC45" class="line" lang="mosel"></span>
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<pre style="margin: 0;">+<span id="LC46" class="line" lang="mosel"><span class="k" style="font-weight: 600;">While</span> <span class="k" style="font-weight: 600;">version</span> <span class="m" style="color: #099;">3</span> <span class="n" style="color: #333;">was</span> <span class="n" style="color: #333;">still</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">latest</span> <span class="n" style="color: #333;">specification</span> <span class="n" style="color: #333;">available</span><span class="p">,</span> <span class="n" style="color: #333;">both</span><span class="p">,</span></span>
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<pre style="margin: 0;">+<span id="LC47" class="line" lang="mosel"><span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">specification</span> <span class="k" style="font-weight: 600;">and</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">implementation</span> <span class="n" style="color: #333;">has</span> <span class="n" style="color: #333;">been</span> <span class="n" style="color: #333;">continuously</span></span>
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<pre style="margin: 0;">+<span id="LC48" class="line" lang="mosel"><span class="n" style="color: #333;">improved</span> <span class="p">(</span><span class="n" style="color: #333;">this</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">what</span> <span class="n" style="color: #333;">xntp3</span><span class="p">-</span><span class="m" style="color: #099;">5</span> <span class="n" style="color: #333;">actually</span> <span class="n" style="color: #333;">implements</span><span class="p">).</span> <span class="n" style="color: #333;">Since</span> <span class="n" style="color: #333;">about</span> <span class="m" style="color: #099;">1994</span></span>
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<pre style="margin: 0;">+<span id="LC49" class="line" lang="mosel"><span class="n" style="color: #333;">work</span> <span class="n" style="color: #333;">for</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">new</span> <span class="k" style="font-weight: 600;">version</span> <span class="k" style="font-weight: 600;">of</span> <span class="n" style="color: #333;">NTP</span> <span class="n" style="color: #333;">is</span> <span class="k" style="font-weight: 600;">in</span> <span class="n" style="color: #333;">progress</span><span class="p">.</span> <span class="n" style="color: #333;">The</span> <span class="n" style="color: #333;">first</span> <span class="n" style="color: #333;">new</span></span>
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<pre style="margin: 0;">+<span id="LC50" class="line" lang="mosel"><span class="n" style="color: #333;">specification</span> <span class="n" style="color: #333;">was</span> <span class="n" style="color: #333;">https</span><span class="p">://</span><span class="n" style="color: #333;">tools</span><span class="p">.</span><span class="n" style="color: #333;">ietf</span><span class="p">.</span><span class="n" style="color: #333;">org</span><span class="p">/</span><span class="n" style="color: #333;">rfc</span><span class="p">/</span><span class="n" style="color: #333;">rfc2030</span><span class="p">.</span><span class="n" style="color: #333;">txt</span><span class="p">[</span><span class="n" style="color: #333;">RFC</span> <span class="m" style="color: #099;">2030</span><span class="p">],</span></span>
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<pre style="margin: 0;">+<span id="LC51" class="line" lang="mosel"><span class="n" style="color: #333;">Simple</span> <span class="n" style="color: #333;">Network</span> <span class="n" style="color: #333;">Time</span> <span class="n" style="color: #333;">Protocol</span> <span class="p">(</span><span class="n" style="color: #333;">SNTP</span><span class="p">)</span> <span class="k" style="font-weight: 600;">version</span> <span class="m" style="color: #099;">4</span> <span class="n" style="color: #333;">for</span> <span class="n" style="color: #333;">IPv4</span><span class="p">,</span> <span class="n" style="color: #333;">IPv6</span> <span class="k" style="font-weight: 600;">and</span> <span class="n" style="color: #333;">OSI</span><span class="p">.</span></span>
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<pre style="margin: 0;">+<span id="LC52" class="line" lang="mosel"><span class="n" style="color: #333;">This</span> <span class="n" style="color: #333;">issued</span> <span class="k" style="font-weight: 600;">in</span> <span class="m" style="color: #099;">1996.</span></span>
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<pre style="margin: 0;">+<span id="LC53" class="line" lang="mosel"></span>
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<pre style="margin: 0;">+<span id="LC54" class="line" lang="mosel"><span class="n" style="color: #333;">External</span> <span class="n" style="color: #333;">pulses</span> <span class="n" style="color: #333;">can</span> <span class="n" style="color: #333;">be</span> <span class="n" style="color: #333;">used</span> <span class="k" style="font-weight: 600;">to</span> <span class="n" style="color: #333;">calibrate</span> <span class="k" style="font-weight: 600;">and</span> <span class="n" style="color: #333;">stabilize</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">operating</span></span>
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<pre style="margin: 0;">+<span id="LC55" class="line" lang="mosel"><span class="nf" style="color: #900; font-weight: 600;">system</span><span class="s1" style="color: #d14;">'s clock. Therefore an operating system interface (API) has been</span></span>
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<pre style="margin: 0;">+<span id="LC56" class="line" lang="mosel"><span class="s1" style="color: #d14;">designed and documented in https://tools.ietf.org/rfc/rfc2783.txt[RFC</span></span>
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<pre style="margin: 0;">+<span id="LC57" class="line" lang="mosel"><span class="s1" style="color: #d14;">2783] (Pulse-per-second API for Unix-like operating systems, version</span></span>
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<pre style="margin: 0;">+<span id="LC58" class="line" lang="mosel"><span class="s1" style="color: #d14;">1), finally published in 1999.  This is now implemented in all</span></span>
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<pre style="margin: 0;">+<span id="LC59" class="line" lang="mosel"><span class="s1" style="color: #d14;">modern Unixes.</span></span>
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<pre style="margin: 0;">+<span id="LC60" class="line" lang="mosel"></span>
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<pre style="margin: 0;">+<span id="LC61" class="line" lang="mosel"></span>
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<pre style="margin: 0;">+<span id="LC62" class="line" lang="mosel"></span></pre>
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<a href="https://gitlab.com/NTPsec/ntpsec/compare/b02d25a608fd2b8a8b1734236520ca1d9a0804ff...7771778e1cd2ad854c3ca9115f9447f9a93267d4#8ef4b4f93f17d2271dc4cedb9a136e5f7644f30b"><strong>docs/index.adoc</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -167,6 +167,8 @@ bibliography and briefing slides suitable for presentations are on the</td>
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<pre style="margin: 0;"> <span id="LC167" class="line" lang="plaintext">Synchronization Research Project] page. Additional information is at</span>
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<pre style="margin: 0;"> <span id="LC168" class="line" lang="plaintext">the NTPsec web site {project-weblink}.</span>
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<pre style="margin: 0;"> <span id="LC169" class="line" lang="plaintext"></span>
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<pre style="margin: 0;">+<span id="LC170" class="line" lang="plaintext">You can also read a brief link:history.html[history of NTP].</span>
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<pre style="margin: 0;">+<span id="LC171" class="line" lang="plaintext"></span>
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<pre style="margin: 0;"> <span id="LC172" class="line" lang="plaintext">'''''</span>
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<pre style="margin: 0;"> <span id="LC173" class="line" lang="plaintext"></span>
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<pre style="margin: 0;"> <span id="LC174" class="line" lang="plaintext">image::pic/pogo1a.gif[align="center"]</span>
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