1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.3/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 Linux_PAM-download-http "http://www.kernel.org/pub/linux/libs/pam/pre/library/Linux-PAM-&Linux_PAM-version;.tar.bz2">
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8 | <!ENTITY Linux_PAM-download-ftp "ftp://ftp.kernel.org/pub/linux/libs/pam/pre/library/Linux-PAM-&Linux_PAM-version;.tar.bz2">
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9 | <!ENTITY Linux_PAM-size "364 KB">
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10 | <!ENTITY Linux_PAM-buildsize "6.1 MB">
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11 | <!ENTITY Linux_PAM-time "0.07 SBU">
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12 | ]>
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13 |
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14 | <sect1 id="Linux_PAM" xreflabel="Linux-PAM-&Linux_PAM-version;">
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15 | <sect1info>
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16 | <othername>$LastChangedBy$</othername>
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17 | <date>$Date$</date>
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18 | </sect1info>
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19 | <?dbhtml filename="linux_pam.html"?>
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20 | <title>Linux-PAM-&Linux_PAM-version;</title>
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21 | <indexterm zone="Linux_PAM">
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22 | <primary sortas="a-PAM_linux">PAM(Linux)</primary></indexterm>
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23 |
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24 | <sect2>
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25 | <title>Introduction to <application>Linux-<acronym>PAM</acronym></application>
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26 | </title>
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27 |
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28 | <para>The <application>Linux-<acronym>PAM</acronym></application> package
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29 | contains Pluggable Authentication Modules. This is useful to enable the local
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30 | system administrator to choose how applications authenticate users.</para>
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31 |
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32 | <sect3><title>Package information</title>
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33 | <itemizedlist spacing='compact'>
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34 | <listitem><para>Download (HTTP): <ulink
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35 | url="&Linux_PAM-download-http;"/></para></listitem>
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36 | <listitem><para>Download (FTP): <ulink
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37 | url="&Linux_PAM-download-ftp;"/></para></listitem>
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38 | <listitem><para>Download size: &Linux_PAM-size;</para></listitem>
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39 | <listitem><para>Estimated disk space required:
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40 | &Linux_PAM-buildsize;</para></listitem>
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41 | <listitem><para>Estimated build time:
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42 | &Linux_PAM-time;</para></listitem></itemizedlist>
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43 | </sect3>
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44 |
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45 | <sect3><title>Additional download</title>
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46 | <itemizedlist spacing='compact'>
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47 | <listitem><para>Required Patch: <ulink
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48 | url="&patch-root;/Linux-PAM-&Linux_PAM-version;-linkage-1.patch"/></para>
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49 | </listitem></itemizedlist>
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50 | </sect3>
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51 |
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52 | <sect3><title><application>Linux-<acronym>PAM</acronym></application>
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53 | dependencies</title>
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54 | <sect4><title>Optional</title>
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55 | <para><xref linkend="cracklib"/> and sgmltools-lite
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56 | (<ulink url="http://sourceforge.net/projects/sgmltools-lite/"/>)
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57 | </para></sect4>
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58 | </sect3>
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59 |
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60 | </sect2>
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61 |
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62 | <sect2>
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63 | <title>Installation of <application>Linux-<acronym>PAM</acronym></application>
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64 | </title>
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65 |
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66 | <para>Install <application>Linux-<acronym>PAM</acronym></application> by
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67 | running the following commands:</para>
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68 |
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69 | <screen><userinput><command>patch -Np1 -i ../Linux-PAM-&Linux_PAM-version;-linkage-1.patch &&
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70 | autoconf &&
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71 | ./configure --enable-static-libpam --with-mailspool=/var/mail \
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72 | --enable-read-both-confs --sysconfdir=/etc &&
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73 | make &&
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74 | make install &&
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75 | mv /lib/libpam.a /lib/libpam_misc.a /lib/libpamc.a /usr/lib &&
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76 | ln -sf ../../lib/libpam.so.&Linux_PAM-version; /usr/lib/libpam.so &&
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77 | ln -sf ../../lib/libpam_misc.so.&Linux_PAM-version; /usr/lib/libpam_misc.so &&
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78 | ln -sf ../../lib/libpamc.so.&Linux_PAM-version; /usr/lib/libpamc.so</command></userinput></screen>
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79 |
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80 | </sect2>
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81 |
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82 | <sect2>
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83 | <title>Command explanations</title>
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84 |
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85 | <para><command>autoconf</command>: This is necessary because the patch
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86 | changes where <acronym>PAM</acronym> looks for the
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87 | <application>cracklib</application> libraries, requiring regeneration of the
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88 | configure script.</para>
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89 |
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90 | <para><option>--enable-static-libpam</option>: This switch builds
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91 | static <acronym>PAM</acronym> libraries as well as the dynamic libraries.</para>
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92 |
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93 | <para><parameter>--with-mailspool=/var/mail</parameter>: This switch makes
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94 | the mailspool directory <acronym>FHS</acronym> compliant.</para>
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95 |
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96 | <para><option>--enable-read-both-confs</option>: This switch lets the local
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97 | administrator choose which configuration file setup to use.</para>
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98 |
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99 | <para><command>mv /lib/libpam.a /lib/libpam_misc.a /lib/libpamc.a
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100 | /usr/lib</command>: This command moves the static libraries to
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101 | <filename>/usr/lib</filename> to comply with <acronym>FHS</acronym>
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102 | guidelines.</para>
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103 |
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104 | </sect2>
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105 |
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106 | <sect2>
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107 | <title>Configuring <application>Linux-<acronym>PAM</acronym></application>
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108 | </title>
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109 |
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110 | <sect3><title>Config files</title>
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111 | <para><filename>/etc/pam.d/*</filename> or <filename>/etc/pam.conf</filename>
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112 | </para></sect3>
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113 |
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114 | <sect3><title>Configuration Information</title>
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115 |
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116 | <para>Configuration information is placed in
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117 | <filename class='directory'>/etc/pam.d/</filename> or
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118 | <filename>/etc/pam.conf</filename> depending on user preference. Below are
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119 | example files of each type:</para>
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120 |
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121 | <screen># Begin /etc/pam.d/other
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122 |
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123 | auth required pam_unix.so nullok
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124 | account required pam_unix.so
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125 | session required pam_unix.so
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126 | password required pam_unix.so nullok
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127 |
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128 | # End /etc/pam.d/other
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129 |
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130 | # Begin /etc/pam.conf
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131 |
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132 | other auth required pam_unix.so nullok
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133 | other account required pam_unix.so
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134 | other session required pam_unix.so
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135 | other password required pam_unix.so nullok
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136 |
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137 | # End /etc/pam.conf</screen>
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138 |
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139 | <para>The <application><acronym>PAM</acronym></application> man page
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140 | (<command>man pam</command>) provides a good starting point for descriptions
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141 | of fields and allowable entries. The
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142 | <ulink url="http://www.kernel.org/pub/linux/libs/pam/Linux-PAM-html/pam.html">
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143 | Linux-PAM guide for system administrators</ulink>
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144 | is recommended for further reading.</para>
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145 |
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146 | <para>Refer to
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147 | <ulink url="http://www.kernel.org/pub/linux/libs/pam/modules.html"/>
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148 | for a list of various modules available.</para>
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149 |
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150 | </sect3>
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151 |
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152 | </sect2>
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153 |
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154 | <sect2>
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155 | <title>Contents</title>
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156 |
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157 |
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158 | <segmentedlist>
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159 | <segtitle>Installed Program</segtitle>
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160 | <segtitle>Installed Libraries</segtitle>
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161 | <segtitle>Installed Directory</segtitle>
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162 | <seglistitem>
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163 | <seg>unix_chkpwd and pam_tally</seg>
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164 | <seg>libpam.so, libpamc.so and libpma_misc.so</seg>
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165 | <seg>/lib/security</seg>
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166 | </seglistitem>
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167 | </segmentedlist>
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168 |
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169 | <variablelist>
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170 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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171 | <?dbfo list-presentation="list"?>
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172 |
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173 | <varlistentry id="unix_chkpwd">
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174 | <term><command>unix_chkpwd</command></term>
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175 | <listitem><para>checks user passwords that are stored
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176 | in read protected databases.</para>
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177 | <indexterm zone="Linux_PAM unix_chkpwd">
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178 | <primary sortas="b-unix_chkpwd">unix_chkpwd</primary></indexterm>
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179 | </listitem>
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180 | </varlistentry>
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181 |
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182 | <varlistentry id="libpam">
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183 | <term><filename class='libraryfile'>libpam.so</filename></term>
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184 | <listitem><para> provide the interfaces between applications and the <acronym>PAM</acronym> modules.</para>
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185 | <indexterm zone="Linux_PAM libpam">
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186 | <primary sortas="c-libpam">libpam.so</primary></indexterm>
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187 | </listitem>
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188 | </varlistentry>
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189 | </variablelist>
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190 |
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191 | </sect2>
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192 |
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193 | </sect1>
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194 |
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