source: basicnet/netprogs/ntp/ntp-config.xml@ c76806a

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Last change on this file since c76806a was c76806a, checked in by Larry Lawrence <larry@…>, 17 years ago

grammer fixes

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@2250 af4574ff-66df-0310-9fd7-8a98e5e911e0

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File size: 1.8 KB
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1<sect2>
2<title>Configuring <application><acronym>NTP</acronym></application></title>
3
4<sect3><title>Config files</title>
5<para><filename>/etc/ntp.conf</filename></para>
6</sect3>
7
8<sect3><title>Configuration Information</title>
9
10<para>The following configuration file defines various <acronym>NTP</acronym>
11stratum 2 servers with open access from different continents. It also
12creates a drift file where <command>ntpd</command> stores the frequency
13offset. Since the documentation included with the package is sparse,
14visit the <acronym>NTP</acronym> website at
15<ulink url="http://www.ntp.org/"/> for more information.</para>
16
17<screen><userinput><command>cat &gt; /etc/ntp.conf &lt;&lt; "EOF"</command>
18# Africa
19server tock.nml.csir.co.za
20
21# Asia
22server ntp.shim.org
23
24# Australia
25server ntp.saard.net
26
27# Europe
28server ntp.tuxfamily.net
29
30# North America
31server clock.psu.edu
32
33driftfile /var/cache/ntp.drift
34<command>EOF</command></userinput></screen>
35</sect3>
36
37<sect3><title>Synchronizing the time</title>
38
39<para>There are two options. Option one is to run <command>ntpd</command>
40continuously and allow it to synchronize the time in a gradual manner. The other
41option is to run <command>ntpd</command> periodically (using cron)
42and update the time each time <command>ntpd</command> is scheduled.</para>
43
44<para>If you choose Option one, then install the
45<filename>/etc/rc.d/init.d/ntp</filename>
46init script included in the
47<xref linkend="intro-important-bootscripts"/> package.</para>
48
49<screen><userinput><command>make install-ntp</command></userinput></screen>
50
51<para>If you prefer to run ntpd periodically, add the following command to
52root's <filename>crontab</filename>:</para>
53<screen><userinput>ntpd -q</userinput></screen>
54
55</sect3>
56
57</sect2>
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