mirror of
https://github.com/Zeckmathederg/glfs.git
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Tagged ntp.xml. Fixed a small bug in previous netprogs tagged files.
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@3866 af4574ff-66df-0310-9fd7-8a98e5e911e0
This commit is contained in:
Manuel Canales Esparcia
parent
c174c5fefd
commit
dc6715af3d
@ -53,7 +53,8 @@
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<para>Estimated disk space required: &cvs-buildsize;</para>
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</listitem>
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<listitem>
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<para>Estimated build time: &cvs-time;</para></listitem>
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<para>Estimated build time: &cvs-time;</para>
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</listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">Additional Downloads</bridgehead>
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@ -50,7 +50,7 @@
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<para>Estimated disk space required: &inetutils-buildsize;</para>
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</listitem>
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<listitem>
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<para>Estimated build time: &inetutils-time;</para></listitem>
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<para>Estimated build time: &inetutils-time;</para></listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">Additional Downloads</bridgehead>
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@ -53,7 +53,7 @@
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<para>Estimated disk space required: &ncftp-buildsize;</para>
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</listitem>
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<listitem>
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<para>Estimated build time: &ncftp-time;</para></listitem>
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<para>Estimated build time: &ncftp-time;</para></listitem>
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</itemizedlist>
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</sect2>
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@ -51,7 +51,7 @@
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<para>Estimated disk space required: &ncpfs-buildsize;</para>
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</listitem>
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<listitem>
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<para>Estimated build time: &ncpfs-time;</para></listitem>
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<para>Estimated build time: &ncpfs-time;</para></listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">NCPFS Dependencies</bridgehead>
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@ -56,7 +56,7 @@
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<para>Estimated disk space required: &net-tools-buildsize;</para>
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</listitem>
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<listitem>
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<para>Estimated build time: &net-tools-time;</para></listitem>
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<para>Estimated build time: &net-tools-time;</para></listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">Additional Downloads</bridgehead>
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@ -13,75 +13,93 @@
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]>
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<sect1 id="ntp" xreflabel="NTP-&ntp-version;">
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<sect1info>
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<othername>$LastChangedBy$</othername>
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<date>$Date$</date>
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</sect1info>
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<?dbhtml filename="ntp.html"?>
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<title>NTP-&ntp-version;</title>
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<?dbhtml filename="ntp.html"?>
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<sect1info>
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<othername>$LastChangedBy$</othername>
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<date>$Date$</date>
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</sect1info>
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<title>NTP-&ntp-version;</title>
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<indexterm zone="ntp">
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<primary sortas="a-NTP">NTP</primary>
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</indexterm>
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<sect2>
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<title>Introduction to <application><acronym>NTP</acronym></application></title>
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<sect2 role="package">
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<title>Introduction to NTP</title>
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<para>The <application>NTP</application> package contains a
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client and server to keep the time synchronized between various computers over
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a network. This package is the official reference implementation of the
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NTP protocol.</para>
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<bridgehead renderas="sect3">Package Information</bridgehead>
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<itemizedlist spacing="compact">
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<listitem>
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<para>Download (HTTP): <ulink url="&ntp-download-http;"/></para>
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</listitem>
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<listitem>
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<para>Download (FTP): <ulink url="&ntp-download-ftp;"/></para>
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</listitem>
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<listitem>
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<para>Download MD5 sum: &ntp-md5sum;</para>
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</listitem>
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<listitem>
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<para>Download size: &ntp-size;</para>
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</listitem>
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<listitem>
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<para>Estimated disk space required: &ntp-buildsize;</para>
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</listitem>
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<listitem>
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<para>Estimated build time: &ntp-time;</para></listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">TEMPLATE Dependencies</bridgehead>
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<bridgehead renderas="sect4">Optional</bridgehead>
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<para><xref linkend="openssl"/></para>
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</sect2>
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<sect2 role="installation">
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<title>Installation of NTP</title>
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<para>The <application><acronym>NTP</acronym></application> package contains a
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client and server to keep the time synchronized between various computers over
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a network. This package is the official reference implementation of the
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<acronym>NTP</acronym> protocol.</para>
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<para>Install <application>NTP</application> by running
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the following commands:</para>
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<sect3><title>Package information</title>
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<itemizedlist spacing='compact'>
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<listitem><para>Download (HTTP):
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<ulink url="&ntp-download-http;"/></para></listitem>
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<listitem><para>Download (FTP):
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<ulink url="&ntp-download-ftp;"/></para></listitem>
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<listitem><para>Download MD5 sum: &ntp-md5sum;</para></listitem>
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<listitem><para>Download size: &ntp-size;</para></listitem>
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<listitem><para>Estimated disk space required:
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&ntp-buildsize;</para></listitem>
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<listitem><para>Estimated build time:
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&ntp-time;</para></listitem></itemizedlist>
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</sect3>
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<sect3><title><application><acronym>NTP</acronym></application>
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dependencies</title>
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<sect4><title>Optional</title>
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<para><xref linkend="openssl"/></para>
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</sect4>
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</sect3>
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</sect2>
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<sect2>
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<title>Installation of <application><acronym>NTP</acronym></application></title>
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<para>Install <application><acronym>NTP</acronym></application> by running
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the following commands:</para>
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<screen><userinput><command>./configure --prefix=/usr --bindir=/usr/sbin \
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<screen><userinput>./configure --prefix=/usr --bindir=/usr/sbin \
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--sysconfdir=/etc &&
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make &&
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make install</command></userinput></screen>
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make install</userinput></screen>
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</sect2>
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<sect2 role="configuration">
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<title>Configuring NTP</title>
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<sect3 id="ntp-config">
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<title>Config Files</title>
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<para><filename>/etc/ntp.conf</filename></para>
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<indexterm zone="ntp ntp-config">
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<primary sortas="e-etc-ntp.conf">/etc/ntp.conf</primary>
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</indexterm>
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</sect3>
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<sect3>
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<title>Configuration Information</title>
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</sect2>
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<para>The following configuration file defines various NTP
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stratum 2 servers with open access from different continents. It also
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creates a drift file where <command>ntpd</command> stores the frequency
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offset. Since the documentation included with the package is sparse,
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visit the NTP website at <ulink url="http://www.ntp.org/"/> for more information.</para>
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<sect2>
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<title>Configuring <application><acronym>NTP</acronym></application></title>
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<sect3><title>Config files</title>
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<para><filename>/etc/ntp.conf</filename></para>
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</sect3>
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<sect3><title>Configuration Information</title>
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<para>The following configuration file defines various <acronym>NTP</acronym>
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stratum 2 servers with open access from different continents. It also
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creates a drift file where <command>ntpd</command> stores the frequency
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offset. Since the documentation included with the package is sparse,
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visit the <acronym>NTP</acronym> website at
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<ulink url="http://www.ntp.org/"/> for more information.</para>
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<screen><userinput><command>cat > /etc/ntp.conf << "EOF"</command>
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# Africa
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<screen role="root"><userinput>cat > /etc/ntp.conf << "EOF"
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<literal># Africa
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server tock.nml.csir.co.za
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# Asia
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@ -96,100 +114,171 @@ server ntp.tuxfamily.net
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# North America
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server clock.psu.edu
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driftfile /var/cache/ntp.drift
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<command>EOF</command></userinput></screen>
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</sect3>
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driftfile /var/cache/ntp.drift</literal>
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EOF</userinput></screen>
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<sect3><title>Synchronizing the time</title>
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</sect3>
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<sect3 id="ntp-init">
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<title>Synchronizing the Time</title>
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<para>There are two options. Option one is to run <command>ntpd</command>
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continuously and allow it to synchronize the time in a gradual manner. The
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other option is to run <command>ntpd</command> periodically (using cron)
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and update the time each time <command>ntpd</command> is scheduled.</para>
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<para>There are two options. Option one is to run <command>ntpd</command>
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continuously and allow it to synchronize the time in a gradual manner. The
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other option is to run <command>ntpd</command> periodically (using cron)
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and update the time each time <command>ntpd</command> is scheduled.</para>
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<para>If you choose Option one, then install the
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<filename>/etc/rc.d/init.d/ntp</filename>
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init script included in the
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<xref linkend="intro-important-bootscripts"/> package.</para>
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<indexterm zone="ntp ntp-init">
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<primary sortas="f-ntp">ntp</primary>
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</indexterm>
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<para>If you choose Option one, then install the
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<filename>/etc/rc.d/init.d/ntp</filename>
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init script included in the
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<xref linkend="intro-important-bootscripts"/> package.</para>
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<screen role="root"><userinput>make install-ntp</userinput></screen>
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<screen><userinput><command>make install-ntp</command></userinput></screen>
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<para>If you prefer to run <command>ntpd</command> periodically, add the
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following command to <systemitem class="username">root</systemitem>'s
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<filename>crontab</filename>:</para>
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<screen><literal>ntpd -q</literal></screen>
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<para>If you prefer to run ntpd periodically, add the following command to
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root's <filename>crontab</filename>:</para>
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<screen><userinput>ntpd -q</userinput></screen>
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<para>Execute the following command if you would like to set the
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hardware clock at shutdown and reboot based on the current system
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time:</para>
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<para>Execute the following command if you would like to set the
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hardware clock at shutdown and reboot based on the current system
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time:</para>
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<screen><userinput><command>ln -sf ../init.d/setclock /etc/rc.d/rc0.d/K46setclock &&
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ln -sf ../init.d/setclock /etc/rc.d/rc6.d/K46setclock</command></userinput></screen>
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<para>The other way around is already set up by
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<acronym>LFS</acronym>.</para>
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</sect3>
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</sect2>
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<sect2>
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<title>Contents</title>
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<para>The <application><acronym>NTP</acronym></application> package
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contains <command>ntp-wait</command>, <command>ntptrace</command>,
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<command>ntpd</command>, <command>ntpdate</command>,
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<command>ntpdc</command>, <command>ntpq</command>,
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<command>ntptime</command>, <command>tickadj</command> and
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<command>ntp-keygen</command>.</para>
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</sect2>
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<sect2><title>Description</title>
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<sect3><title>ntp-wait</title>
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<para><command>ntp-wait</command> is useful at boot time, to delay the
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boot sequence until <command>ntpd</command> has set the
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time.</para></sect3>
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<sect3><title>ntptrace</title>
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<para><command>ntptrace</command> traces a chain of
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<acronym>NTP</acronym> servers back to the primary source.</para></sect3>
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<sect3><title>ntpd</title>
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<para><command>ntpd</command> is a NTP daemon that runs in the
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background and keeps the date and time synchronized based on response
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from configured <acronym>NTP</acronym> servers. It also functions as a
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<acronym>NTP</acronym> server.</para></sect3>
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<sect3><title>ntpdate</title>
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<para><command>ntpdate</command> is a client program that sets the date
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and time based on the response from an <acronym>NTP</acronym> server.
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||||
This command is deprecated.</para></sect3>
|
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<sect3><title>ntpdc</title>
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<para><command>ntpdc</command> is used to query the
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<acronym>NTP</acronym> daemon about its current state and to request
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changes in that state.</para></sect3>
|
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<sect3><title>ntpq</title>
|
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<para><command>ntpq</command> is an utility program used to monitor
|
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<command>ntpd</command> operations and determine
|
||||
performance.</para></sect3>
|
||||
|
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<sect3><title>ntptime</title>
|
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<para><command>ntptime</command> reads and displays time-related
|
||||
kernel variables.</para></sect3>
|
||||
|
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<sect3><title>tickadj</title>
|
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<para><command>tickadj</command> reads, and optionally modifies,
|
||||
several timekeeping-related variables in older kernels that do not have
|
||||
support for precision timekeeping.</para></sect3>
|
||||
|
||||
<sect3><title>ntp-keygen</title>
|
||||
<para><command>ntp-keygen</command> generates cryptographic data files
|
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used by the <acronym>NTP</acronym>v4 authentication and identification
|
||||
schemes.</para></sect3>
|
||||
|
||||
</sect2>
|
||||
<screen role="root"><userinput>ln -sf ../init.d/setclock /etc/rc.d/rc0.d/K46setclock &&
|
||||
ln -sf ../init.d/setclock /etc/rc.d/rc6.d/K46setclock</userinput></screen>
|
||||
|
||||
<para>The other way around is already set up by LFS.</para>
|
||||
|
||||
</sect3>
|
||||
|
||||
</sect2>
|
||||
|
||||
<sect2 role="content">
|
||||
<title>Contents</title>
|
||||
|
||||
<segmentedlist>
|
||||
<segtitle>Installed Programs</segtitle>
|
||||
<segtitle>Installed Libraries</segtitle>
|
||||
<segtitle>Installed Directories</segtitle>
|
||||
|
||||
<seglistitem>
|
||||
<seg>ntp-keygen, ntp-wait, ntpd, ntpdate, ntpdc, ntpq,
|
||||
ntptime, ntptrace, and tickadj</seg>
|
||||
<seg>None</seg>
|
||||
<seg>None</seg>
|
||||
</seglistitem>
|
||||
</segmentedlist>
|
||||
|
||||
<variablelist>
|
||||
<bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
||||
<?dbfo list-presentation="list"?>
|
||||
<?dbhtml list-presentation="table"?>
|
||||
|
||||
<varlistentry id="ntp-keygen">
|
||||
<term><command>ntp-keygen</command></term>
|
||||
<listitem>
|
||||
<para>generates cryptographic data files used by the NTPv4 authentication
|
||||
and identification schemes.</para>
|
||||
<indexterm zone="ntp ntp-keygen">
|
||||
<primary sortas="b-ntp-keygen">ntp-keygen</primary>
|
||||
</indexterm>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
<varlistentry id="ntp-wait">
|
||||
<term><command>ntp-wait</command></term>
|
||||
<listitem>
|
||||
<para>is useful at boot time, to delay the boot sequence until
|
||||
<command>ntpd</command> has set the time.</para>
|
||||
<indexterm zone="ntp ntp-wait">
|
||||
<primary sortas="b-ntp-wait">ntp-wait</primary>
|
||||
</indexterm>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
<varlistentry id="ntpd">
|
||||
<term><command>ntpd</command></term>
|
||||
<listitem>
|
||||
<para>is a NTP daemon that runs in the background and keeps
|
||||
the date and time synchronized based on response from configured
|
||||
NTP servers. It also functions as a NTP server.</para>
|
||||
<indexterm zone="ntp ntpd">
|
||||
<primary sortas="b-ntpd">ntpd</primary>
|
||||
</indexterm>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
<varlistentry id="ntpdate">
|
||||
<term><command>ntpdate</command></term>
|
||||
<listitem>
|
||||
<para>is a client program that sets the date and time based on
|
||||
the response from an NTP server. This command is deprecated.</para>
|
||||
<indexterm zone="ntp ntpdate">
|
||||
<primary sortas="b-ntpdate">ntpdate</primary>
|
||||
</indexterm>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
<varlistentry id="ntpdc">
|
||||
<term><command>ntpdc</command></term>
|
||||
<listitem>
|
||||
<para>is used to query the NTP daemon about its current state
|
||||
and to request changes in that state.</para>
|
||||
<indexterm zone="ntp ntpdc">
|
||||
<primary sortas="b-ntpdc">ntpdc</primary>
|
||||
</indexterm>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
<varlistentry id="ntpq">
|
||||
<term><command>ntpq</command></term>
|
||||
<listitem>
|
||||
<para>is an utility program used to monitor <command>ntpd</command>
|
||||
operations and determine performance.</para>
|
||||
<indexterm zone="ntp ntpq">
|
||||
<primary sortas="b-ntpq">ntpq</primary>
|
||||
</indexterm>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
<varlistentry id="ntptime">
|
||||
<term><command>ntptime</command></term>
|
||||
<listitem>
|
||||
<para>reads and displays time-related kernel variables.</para>
|
||||
<indexterm zone="ntp ntptime">
|
||||
<primary sortas="b-ntptime">ntptime</primary>
|
||||
</indexterm>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
<varlistentry id="ntptrace">
|
||||
<term><command>ntptrace</command></term>
|
||||
<listitem>
|
||||
<para>traces a chain of NTP servers back to the primary source.</para>
|
||||
<indexterm zone="ntp ntptrace">
|
||||
<primary sortas="b-ntptrace"></primary>
|
||||
</indexterm>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
<varlistentry id="tickadj">
|
||||
<term><command>tickadj</command></term>
|
||||
<listitem>
|
||||
<para>reads, and optionally modifies, several timekeeping-related
|
||||
variables in older kernels that do not have support for precision
|
||||
timekeeping.</para>
|
||||
<indexterm zone="ntp tickadj">
|
||||
<primary sortas="b-tickadj">tickadj</primary>
|
||||
</indexterm>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
</variablelist>
|
||||
|
||||
</sect2>
|
||||
|
||||
</sect1>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user