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<td><font size=2 color=#ffffff><b>Date</b></font></td>
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</tr>
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<tr bgcolor=#CCCCE7><td><font size=2><b>19195</b></font></td>
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<td bgcolor=#ffffff><font size=2> </font></td>
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<td><font size=2><b>Upgraded to 2.6, using xntpd, but the system clock is drifting. Worked fine</b></font></td>
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<td bgcolor=#ffffff><font size=2> </font></td>
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<td><font size=2><b>4 Sep 1999</b></font></td>
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<td><font size=2 color=#ffffff><b><a name=Problem-Description>Problem Description</a></b></font></td>
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<pre>Ever since upgrading to Solaris 2.6, the system clock has been drifting and
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there are messages like 'synchronisation lost', 'Previous time adjustment
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didn''t complete' and 'time reset (step)' a lot in the /var/adm/messages
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file. The system either was previously working fine with the freeware
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xntpd or the configuration was copied from another system that was
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using the freeware version.
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-- 23-Apr-99 08:22 US/Eastern --</pre><table width=100% cellpadding=2 cellspacing=0 border=0><tr bgcolor=#999999>
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<td><font size=2 color=#ffffff><b><a name=Problem-Solution>Problem Solution</a></b></font></td>
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<td align=right><b><a href="#top"><font size=2 color=#ffffff>Top</font></a></b></td></tr></table>
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<pre>The common lore for setting up xntpd on Solaris using
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the freeware version included the warning to set the
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kernel variable <font color=red>dosynctodr</font> to 0 in the /etc/system
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file thus: set <font color=red>dosynctodr</font>=0
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When using NTP on Solaris 2.6 or later, the kernel
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variable MUST be left at the default value of 1. Prior
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to 2.6 this variable controlled whether or not to rein
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in the softclock using the hardware clock, with the result
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that NTP and the hardware clock would fight for control of
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the soft clock; thus before 2.6 you had to set <font color=red>dosynctodr</font>
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to 0. At 2.6, every system call that adjusts the softclock
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also sets the hard clock, thus while NTP controls the soft
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clock, the hard clock is also controlled. Setting
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<font color=red>dosynctodr</font> to 0 reverts the behavior back to the pre 2.6
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defaulkt behavior, having exactly the opposite effect
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as that intended.
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Do not set <font color=red>dosynctodr</font> to 0.</pre><table width=100% cellpadding=2 cellspacing=0 border=0>
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<tr><td bgcolor=#999999 valign=top width=25%><font color=#ffffff size=2><b><a name=Product-Area>Product Area</a></b></font></td>
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<td bgcolor=#cccccc valign=top width=75%><font size=2>Bundled Network</font></td></tr>
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<tr><td bgcolor=#999999 valign=top width=25%><font color=#ffffff size=2><b><a name=Product>Product</a></b></font></td>
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<td bgcolor=#cccccc valign=top width=75%><font size=2>NTP</font></td></tr>
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<tr><td bgcolor=#999999 valign=top width=25%><font color=#ffffff size=2><b><a name=OS>OS</a></b></font></td>
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<td bgcolor=#cccccc valign=top width=75%><font size=2>Solaris 2.6</font></td></tr>
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<tr><td bgcolor=#999999 valign=top width=25%><font color=#ffffff size=2><b><a name=Hardware>Hardware</a></b></font></td>
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<td bgcolor=#cccccc valign=top width=75%><font size=2>Ultra 2</font></td></tr>
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<tr><td bgcolor=#999999 valign=top width=25%><font color=#ffffff size=2><b><a name=Document-Content>Document Content</a></b></font></td>
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<td bgcolor=#cccccc valign=top width=75%><font size=2>with freeware xntpd.</font></td></tr>
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</table><br clear>
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<font size=2><a href="#top">Top</a></font><br><br>
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