| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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| 7 | <!ENTITY nfs-utils-download-http "http://ftp.kernel.org/pub/linux/utils/nfs/nfs-utils-&nfs-utils-version;.tar.gz">
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| 8 | <!ENTITY nfs-utils-download-ftp "ftp://ftp.kernel.org/pub/linux/utils/nfs/nfs-utils-&nfs-utils-version;.tar.gz">
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| 9 | <!ENTITY nfs-utils-md5sum "8f863120261cd572ad320a9152581e11">
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| 10 | <!ENTITY nfs-utils-size "396 KB">
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| 11 | <!ENTITY nfs-utils-buildsize "5.8 MB">
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| 12 | <!ENTITY nfs-utils-time "0.2 SBU">
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| 13 | ]>
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| 14 |
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| 15 | <sect1 id="nfs-utils" xreflabel="NFS Utilities-&nfs-utils-version;">
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| 16 | <?dbhtml filename="nfs-utils.html"?>
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| 17 |
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| 18 | <sect1info>
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| 19 | <othername>$LastChangedBy$</othername>
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| 20 | <date>$Date$</date>
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| 21 | </sect1info>
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| 22 |
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| 23 | <title>NFS Utilities-&nfs-utils-version;</title>
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| 24 |
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| 25 | <indexterm zone="nfs-utils">
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| 26 | <primary sortas="a-Nfs-utils">NFS Utilities</primary>
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| 27 | </indexterm>
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| 28 |
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| 29 | <sect2 role="package">
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| 30 | <title>Introduction to NFS Utilities</title>
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| 31 |
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| 32 | <para>The <application>NFS Utilities</application> package contains the
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| 33 | userspace server and client tools necessary to use the kernel's nfs
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| 34 | abilities. NFS is a protocol that allows sharing file systems over the
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| 35 | network.</para>
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| 36 |
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| 37 | <bridgehead renderas="sect3">Package information</bridgehead>
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| 38 | <itemizedlist spacing='compact'>
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| 39 | <listitem>
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| 40 | <para>Download (HTTP): <ulink url="&nfs-utils-download-http;"/></para>
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| 41 | </listitem>
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| 42 | <listitem>
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| 43 | <para>Download (FTP): <ulink url="&nfs-utils-download-ftp;"/></para>
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| 44 | </listitem>
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| 45 | <listitem>
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| 46 | <para>Download MD5 sum: &nfs-utils-md5sum;</para>
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| 47 | </listitem>
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| 48 | <listitem>
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| 49 | <para>Download size: &nfs-utils-size;</para>
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| 50 | </listitem>
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| 51 | <listitem>
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| 52 | <para>Estimated disk space required: &nfs-utils-buildsize;</para>
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| 53 | </listitem>
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| 54 | <listitem>
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| 55 | <para>Estimated build time: &nfs-utils-time;</para>
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| 56 | </listitem>
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| 57 | </itemizedlist>
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| 58 |
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| 59 | <bridgehead renderas="sect3">NFS Utilities Dependencies</bridgehead>
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| 60 |
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| 61 | <bridgehead renderas="sect4">Required</bridgehead>
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| 62 | <para><xref linkend="portmap"/></para>
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| 63 |
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| 64 | <bridgehead renderas="sect4">Optional</bridgehead>
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| 65 | <para><ulink url="http://www.monkey.org/~provos/libevent/">libevent</ulink>
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| 66 | and <ulink
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| 67 | url="http://www.citi.umich.edu/projects/nfsv4/linux/libnfsidmap/">libnsfidmap</ulink>
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| 68 | for nfsv4 support, and <xref linkend="mitkrb"/> or <xref linkend="heimdal"/>
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| 69 | for gss (RPC Security) support.</para>
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| 70 |
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| 71 | </sect2>
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| 72 |
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| 73 | <sect2 role="kernel" id='nfs-utils-kernel'>
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| 74 | <title>Kernel Configuration</title>
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| 75 |
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| 76 | <para>Enable the following options in the kernel configuration
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| 77 | and recompile the kernel if neccessary:</para>
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| 78 |
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| 79 | <screen><literal>File systems:
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| 80 | Network File Systems:
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| 81 | NFS File System Support: M or Y
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| 82 | NFS Server Support: M or Y</literal></screen>
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| 83 |
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| 84 | <para>Select the appropriate sub-options that appear when the above options
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| 85 | are selected.</para>
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| 86 |
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| 87 | <indexterm zone="nfs-utils nfs-utils-kernel">
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| 88 | <primary sortas="d-nfs-utils">NFS Utilities</primary>
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| 89 | </indexterm>
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| 90 |
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| 91 | </sect2>
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| 92 |
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| 93 | <sect2 role="installation">
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| 94 | <title>Installation of NFS Utilities</title>
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| 95 |
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| 96 | <para>Before you compile the program, you need to be sure the
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| 97 | <systemitem class="username">nobody</systemitem> user and
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| 98 | <systemitem class="groupname">nogroup</systemitem> group are available.
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| 99 | You can add these by running the following commands as the
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| 100 | <systemitem class="username">root</systemitem> user:</para>
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| 101 |
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| 102 | <screen role="root"><userinput>groupadd -g 99 nogroup &&
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| 103 | useradd -c nobody -d /home -g nogroup -s /bin/bash -u 99 nobody</userinput></screen>
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| 104 |
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| 105 | <note>
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| 106 | <para>The classic uid and gid values are 65534 which is also -2 when
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| 107 | interpreted as a signed 16-bit number. These values impact other files on
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| 108 | some filesystems that do not have support for sparse files. The
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| 109 | <systemitem class="username">nobody</systemitem> and <systemitem
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| 110 | class="groupname">nogroup</systemitem> values have small impact.
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| 111 | The impact on a server is nil if the exports file is configured correctly.
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| 112 | If it is misconfigured, the impact is that a <command>ls -l</command> or
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| 113 | <command>ps</command> listing will show a uid or gid number of 65534
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| 114 | instead of a name. The client uses <systemitem
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| 115 | class="username">nobody</systemitem> only as the user running
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| 116 | <command>rpc.statd</command>.</para>
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| 117 | </note>
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| 118 |
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| 119 | <para>Install <application>NFS Utilities</application> by running
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| 120 | the following commands:</para>
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| 121 |
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| 122 | <screen><userinput>./configure --prefix=/usr --sysconfdir=/etc \
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| 123 | --disable-nfsv4 --disable-gss &&
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| 124 | make</userinput></screen>
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| 125 |
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| 126 | <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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| 127 |
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| 128 | <screen role='root'><userinput>make install</userinput></screen>
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| 129 |
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| 130 | <note>
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| 131 | <para>If your <filename class="directory">/usr</filename> directory
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| 132 | is NFS mounted, you should install the executables in
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| 133 | <filename class="directory">/sbin</filename> by passing
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| 134 | an additional parameter <option>--sbindir=/sbin</option> to the
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| 135 | above <command>./configure</command> command.</para>
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| 136 | </note>
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| 137 |
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| 138 | </sect2>
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| 139 |
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| 140 | <sect2 role="commands">
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| 141 | <title>Command Explanations</title>
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| 142 |
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| 143 | <para><parameter>--disable-nfsv4</parameter>: Disables support
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| 144 | for NFS Version 4.</para>
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| 145 |
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| 146 | <para><parameter>--disable-gss</parameter>: Disables support for
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| 147 | RPCSEC GSS (RPC Security).</para>
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| 148 |
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| 149 | </sect2>
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| 150 |
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| 151 | <sect2 role="configuration">
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| 152 | <title>Configuring NFS Utilities</title>
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| 153 |
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| 154 | <sect3 id='nfs-utils-server-config'>
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| 155 | <title>Server Configutation</title>
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| 156 |
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| 157 | <para><filename>/etc/exports</filename> contains the exported directories
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| 158 | on NFS servers. Refer to the exports manual page for the syntax of this
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| 159 | file. Also refer to the "NFS HowTo" available at <ulink
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| 160 | url="http://nfs.sourceforge.net/nfs-howto/"/> on how to configure the
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| 161 | servers and clients in a secure manner. For example, for sharing the
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| 162 | <filename class="directory">/home</filename> directory over the local
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| 163 | network, the following line may be added:</para>
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| 164 |
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| 165 | <screen role="root"><userinput>/home 192.168.0.0/255.255.255.0(rw,anonuid=99,anongid=99)</userinput></screen>
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| 166 |
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| 167 | <indexterm zone="nfs-utils nfs-utils-server-config">
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| 168 | <primary sortas="e-etc-exportfs">/etc/exportfs</primary>
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| 169 | </indexterm>
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| 170 |
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| 171 | <sect4 id="nfs-utils-server-init">
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| 172 | <title>Boot Script</title>
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| 173 |
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| 174 | <para>Install the <filename>/etc/rc.d/init.d/nfs-server</filename>
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| 175 | init script included in the <xref
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| 176 | linkend="intro-important-bootscripts"/> package to start the server
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| 177 | at boot.</para>
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| 178 |
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| 179 | <screen role="root"><userinput>make install-nfs-server</userinput></screen>
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| 180 |
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| 181 | <indexterm zone="nfs-utils nfs-utils-server-init">
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| 182 | <primary sortas="f-nfs-server">nfs-server</primary>
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| 183 | </indexterm>
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| 184 |
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| 185 | <para>Now create the <filename>/etc/sysconfig/nfs-server</filename>
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| 186 | configuration file:</para>
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| 187 |
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| 188 | <screen role="root"><userinput>cat > /etc/sysconfig/nfs-server << "EOF"
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| 189 | <literal>PORT="2049"
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| 190 | PROCESSES="8"
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| 191 | QUOTAS="no"
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| 192 | KILLDELAY="10"</literal>
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| 193 | EOF</userinput></screen>
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| 194 |
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| 195 | <indexterm zone="nfs-utils nfs-utils-server-init">
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| 196 | <primary
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| 197 | sortas="e-etc-sysconfig-nfs-server">/etc/sysconfig/nfs-server</primary>
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| 198 | </indexterm>
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| 199 |
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| 200 | </sect4>
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| 201 |
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| 202 | </sect3>
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| 203 |
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| 204 | <sect3 id='nfs-utils-client-config'>
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| 205 | <title>Client Configutation</title>
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| 206 |
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| 207 | <para><filename>/etc/fstab</filename> contains the directories that
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| 208 | are to be mounted on the client. Alternately the partitions can be
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| 209 | mounted by using the <command>mount</command> command with the proper
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| 210 | options. To mount the <filename class="directory">/home</filename>
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| 211 | and <filename class="directory">/usr</filename> partitions, add the
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| 212 | following to the <filename>/etc/fstab</filename>:</para>
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| 213 |
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| 214 | <screen role="root"><userinput><server-name>:/home /home nfs rw,_netdev,rsize=8192,wsize=8192 0 0
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| 215 | <server-name>:/usr /usr nfs ro,_netdev,rsize=8192 0 0</userinput></screen>
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| 216 |
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| 217 | <indexterm zone="nfs-utils nfs-utils-client-config">
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| 218 | <primary sortas="e-etc-fstab">/etc/fstab</primary>
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| 219 | </indexterm>
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| 220 |
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| 221 | <sect4 id="nfs-utils-client-init">
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| 222 | <title>Boot Script</title>
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| 223 |
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| 224 |
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| 225 | <para>Install the <filename>/etc/rc.d/init.d/nfs-client</filename>
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| 226 | init script included in the
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| 227 | <xref linkend="intro-important-bootscripts"/> package to
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| 228 | start the client services at boot.</para>
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| 229 |
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| 230 | <screen role="root"><userinput>make install-nfs-client</userinput></screen>
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| 231 |
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| 232 | <indexterm zone="nfs-utils nfs-utils-client-config">
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| 233 | <primary sortas="f-nfs-client">nfs-client</primary>
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| 234 | </indexterm>
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| 235 |
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| 236 | <para>To automatically mount <systemitem
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| 237 | class="filesystem">nfs</systemitem> filesystems, clients will also
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| 238 | need to install the <filename>netfs</filename> bootscript as described
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| 239 | in <xref linkend='postlfs-config-netfs'/>.</para>
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| 240 |
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| 241 | <indexterm zone="nfs-utils nfs-utils-client-config">
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| 242 | <primary sortas="f-netfs">netfs</primary>
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| 243 | </indexterm>
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| 244 |
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| 245 | </sect4>
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| 246 |
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| 247 | </sect3>
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| 248 |
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| 249 | </sect2>
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| 250 |
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| 251 | <sect2 role="content">
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| 252 | <title>Contents</title>
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| 253 | <segmentedlist>
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| 254 | <segtitle>Installed Programs</segtitle>
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| 255 | <segtitle>Installed Libraries</segtitle>
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| 256 | <segtitle>Installed Directories</segtitle>
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| 257 |
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| 258 | <seglistitem>
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| 259 | <seg>exportfs, nfsstat, nhfsgraph, nhfsnums, nhfsrun, nhfsstone,
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| 260 | rpc.lockd, rpc.mountd, rpc.nfsd, rpc.rquotad, rpc.statd,
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| 261 | and showmount</seg>
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| 262 | <seg>None</seg>
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| 263 | <seg>/var/lib/nfs</seg>
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| 264 | </seglistitem>
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| 265 | </segmentedlist>
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| 266 |
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| 267 | <variablelist>
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| 268 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 269 | <?dbfo list-presentation="list"?>
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| 270 | <?dbhtml list-presentation="table"?>
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| 271 |
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| 272 | <varlistentry id="exportfs">
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| 273 | <term><command>exportfs</command></term>
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| 274 | <listitem>
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| 275 | <para>maintains a list of NFS exported file systems.</para>
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| 276 | <indexterm zone="nfs-utils exportfs">
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| 277 | <primary sortas="b-exportfs">exportfs</primary>
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| 278 | </indexterm>
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| 279 | </listitem>
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| 280 | </varlistentry>
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| 281 |
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| 282 | <varlistentry id="nfsstat">
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| 283 | <term><command>nfsstat</command></term>
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| 284 | <listitem>
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| 285 | <para>prints NFS statistics.</para>
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| 286 | <indexterm zone="nfs-utils nfsstat">
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| 287 | <primary sortas="b-nfsstat">nfsstat</primary>
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| 288 | </indexterm>
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| 289 | </listitem>
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| 290 | </varlistentry>
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| 291 |
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| 292 | <varlistentry id="nhfsgraph">
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| 293 | <term><command>nhfsgraph</command></term>
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| 294 | <listitem>
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| 295 | <para>runs <command>nhfsstone</command> over multiple loads.</para>
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| 296 | <indexterm zone="nfs-utils nhfsgraph">
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| 297 | <primary sortas="b-nhfsgraph">nhfsgraph</primary>
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| 298 | </indexterm>
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| 299 | </listitem>
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| 300 | </varlistentry>
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| 301 |
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| 302 | <varlistentry id="nhfsnums">
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| 303 | <term><command>nhfsnums</command></term>
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| 304 | <listitem>
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| 305 | <para>converts raw numbers from <command>nhfsstone</command>
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| 306 | output into plot format.</para>
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| 307 | <indexterm zone="nfs-utils nhfsnums">
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| 308 | <primary sortas="b-nhfsnums">nhfsnums</primary>
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| 309 | </indexterm>
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| 310 | </listitem>
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| 311 | </varlistentry>
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| 312 |
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| 313 | <varlistentry id="nhfsrun">
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| 314 | <term><command>nhfsrun</command></term>
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| 315 | <listitem>
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| 316 | <para>executes <command>nhfsstone</command> with a range of
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| 317 | different loads.</para>
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| 318 | <indexterm zone="nfs-utils nhfsrun">
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| 319 | <primary sortas="b-nhfsrun">nhfsrun</primary>
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| 320 | </indexterm>
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| 321 | </listitem>
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| 322 | </varlistentry>
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| 323 |
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| 324 | <varlistentry id="nhfsstone">
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| 325 | <term><command>nhfsstone</command></term>
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| 326 | <listitem>
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| 327 | <para>is used on a NFS client to generate an artificial load
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| 328 | with a particular mix of NFS operations.</para>
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| 329 | <indexterm zone="nfs-utils nhfsstone">
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| 330 | <primary sortas="b-nhfsstone">nhfsstone</primary>
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| 331 | </indexterm>
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| 332 | </listitem>
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| 333 | </varlistentry>
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| 334 |
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| 335 | <varlistentry id="rpclockd">
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| 336 | <term><command>rpc.lockd</command></term>
|
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| 337 | <listitem>
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| 338 | <para>starts the NFS lock manager (NLM) on kernels that don't
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| 339 | start it automatically. However, since most kernels do start it
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| 340 | automatically it is usually not required.</para>
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| 341 | <indexterm zone="nfs-utils rpclockd">
|
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| 342 | <primary sortas="b-rpclockd">rpc.lockd</primary>
|
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| 343 | </indexterm>
|
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| 344 | </listitem>
|
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| 345 | </varlistentry>
|
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| 346 |
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| 347 | <varlistentry id="rpcmountd">
|
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| 348 | <term><command>rpc.mountd</command></term>
|
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| 349 | <listitem>
|
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| 350 | <para>implements the NFS mount protocol on an NFS server.</para>
|
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| 351 | <indexterm zone="nfs-utils rpcmountd">
|
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| 352 | <primary sortas="b-rpcmountd">rpc.mountd</primary>
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| 353 | </indexterm>
|
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| 354 | </listitem>
|
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| 355 | </varlistentry>
|
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| 356 |
|
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| 357 | <varlistentry id="rpcnfsd">
|
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| 358 | <term><command>rpc.nfsd</command></term>
|
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| 359 | <listitem>
|
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| 360 | <para>implements the user level part of the NFS
|
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| 361 | service on the server.</para>
|
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| 362 | <indexterm zone="nfs-utils rpcnfsd">
|
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| 363 | <primary sortas="b-rpcnfsd">rpc.nfsd</primary>
|
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| 364 | </indexterm>
|
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| 365 | </listitem>
|
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| 366 | </varlistentry>
|
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| 367 |
|
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| 368 | <varlistentry id="rpcrquotad">
|
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| 369 | <term><command>rpc.rquotad</command></term>
|
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| 370 | <listitem>
|
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| 371 | <para>is an rpc server which returns quotas for a user of a
|
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| 372 | local file system which is mounted by a remote machine over
|
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| 373 | the NFS.</para>
|
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| 374 | <indexterm zone="nfs-utils rpcrquotad">
|
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| 375 | <primary sortas="b-rpcrquotad">rpc.rquotad</primary>
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| 376 | </indexterm>
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| 377 | </listitem>
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| 378 | </varlistentry>
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| 379 |
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| 380 | <varlistentry id="rpcstatd">
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| 381 | <term><command>rpc.statd</command></term>
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| 382 | <listitem>
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| 383 | <para>is used by the NFS file locking service,
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| 384 | <command>rpc.lockd</command>, to implement lock recovery when
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| 385 | the NFS server machine crashes and reboots. Runs on the NFS
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| 386 | server only.</para>
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| 387 | <indexterm zone="nfs-utils rpcstatd">
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| 388 | <primary sortas="b-rpcstatd">rpc.statd</primary>
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| 389 | </indexterm>
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| 390 | </listitem>
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| 391 | </varlistentry>
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| 392 |
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| 393 | <varlistentry id="showmount">
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| 394 | <term><command>showmount</command></term>
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| 395 | <listitem>
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| 396 | <para>displays mount information for an NFS server.</para>
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| 397 | <indexterm zone="nfs-utils showmount">
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| 398 | <primary sortas="b-showmount">showmount</primary>
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| 399 | </indexterm>
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| 400 | </listitem>
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| 401 | </varlistentry>
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| 402 |
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| 403 | </variablelist>
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| 404 |
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| 405 | </sect2>
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| 406 |
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| 407 | </sect1>
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