source: gnome/add/gdm.xml@ 39cb5c3

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
   "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../../general.ent">
  %general-entities;

<!ENTITY gdm-download-http "http://ftp.gnome.org/pub/GNOME/sources/gdm/2.6/gdm-&gdm-version;.tar.bz2">
<!ENTITY gdm-download-ftp "ftp://ftp.gnome.org/pub/GNOME/sources/gdm/2.6/gdm-&gdm-version;.tar.bz2">
<!ENTITY gdm-size "2.9 MB">
<!ENTITY gdm-buildsize "54 MB">
<!ENTITY gdm-time "0.65 SBU">

]>

<sect1 id="gdm" xreflabel="GDM-&gdm-version;">
<?dbhtml filename="gdm.html"?>
<title>GDM-&gdm-version;</title>

<sect2>
<title>Introduction to <application><acronym>GDM</acronym></application></title>

<para>The <application><acronym>GDM</acronym></application> package
contains <application><acronym>GNOME</acronym></application>'s Display Manager daemon. This is
useful for allowing configurable graphical logins.</para>

<sect3><title>Package information</title>
<itemizedlist spacing='compact'>
<listitem><para>Download (HTTP): <ulink
url="&gdm-download-http;"/></para></listitem>
<listitem><para>Download (FTP): <ulink
url="&gdm-download-ftp;"/></para></listitem>
<listitem><para>Download size: &gdm-size;</para></listitem>
<listitem><para>Estimated Disk space required:
&gdm-buildsize;</para></listitem>
<listitem><para>Estimated build time:
&gdm-time;</para></listitem></itemizedlist>
</sect3>
                                                                                
<sect3><title><application><acronym>GDM</acronym></application> dependencies</title>
<sect4><title>Required</title>
<para>
<xref linkend="libgnomeui"/>,
<xref linkend="scrollkeeper"/> and
<xref linkend="librsvg"/>
</para></sect4>
<sect4><title>Optional</title>
<para>
<xref linkend="Linux_PAM"/>,
<xref linkend="tcpwrappers"/> and
<ulink url="http://www.nsa.gov/selinux/">SELinux</ulink>
</para></sect4>
</sect3>

</sect2>

<sect2>
<title>Installation of <application><acronym>GDM</acronym></application></title>

<para>Install <application><acronym>GDM</acronym></application> by running the following commands:</para>

<screen><userinput><command>groupadd gdm &amp;&amp;
useradd -c gdm -d /dev/null -g gdm -s /bin/bash gdm &amp;&amp;
./configure --prefix=`pkg-config --variable=prefix ORBit-2.0` \
    --libexecdir=`pkg-config --variable=prefix ORBit-2.0`/sbin \
    --sysconfdir=/etc/gnome --localstatedir=/var/lib \
    --with-pam-prefix=/etc &amp;&amp;
make &amp;&amp;
make install</command></userinput></screen>

</sect2>

<sect2>
<title>Command explanations</title>

<para><parameter>--sysconfdir=/etc/gnome</parameter>: This command puts
configuration files in <filename class="directory">/etc/gnome</filename> instead of
<filename class="directory">/opt/gnome2/etc</filename>.</para>

<para><parameter>--localstatedir=/var/lib</parameter>: This command
puts files in <filename class="directory">/var/lib</filename> instead of
<filename class="directory">/opt/gnome2/var</filename>.</para>

<para><parameter>--with-pam-prefix=/etc</parameter>: This command puts
<application><acronym>PAM</acronym></application>
configuration files in <filename class="directory">/etc/pam.d</filename> instead of
<filename class="directory">/etc/gnome</filename>.</para>

</sect2>

<sect2>
<title>Configuring <application>GDM</application></title>

<sect3><title>Config files</title>
<para><filename>gdm.conf</filename></para>
</sect3>

<sect3><title>Configuration Information</title>

<para>The <application>GDM</application> <application>PAM</application>
config files contain modules not present in a <acronym>BLFS</acronym>
installation.  The following commands will replace those files:</para>
<screen><userinput><command>cat &gt; /etc/pam.d/gdm &lt;&lt; "EOF"</command>
auth        required    pam_unix.so
auth        required    pam_nologin.so
account     required    pam_unix.so
password    required    pam_unix.so
session     required    pam_unix.so
<command>EOF
cat &gt; /etc/pam.d/gdm-autologin &lt;&lt; "EOF"</command>
auth        required    pam_env.so
auth        required    pam_nologin.so
auth        required    pam_permit.so
account     required    pam_unix.so
password    required    pam_unix.so
session     required    pam_unix.so
<command>EOF</command></userinput></screen>

<para><command>gdm</command> can be tested by executing it from a root console.</para>

<para>To start a graphical login at boot, install the <filename>/etc/rc.d/init.d/gdm</filename>
init script included in the <xref linkend="intro-important-bootscripts"/> package.</para>

<screen><userinput><command>make install-gdm</command></userinput></screen>

<para>To autostart with a graphical login, edit
<filename>/etc/inittab</filename> so that the line containing:</para>
<screen>id:3:initdefault:</screen>
<para>is changed to:</para>
<screen>id:5:initdefault:</screen>

</sect3>

</sect2>

<sect2>
<title>Contents</title>

<para>The <application><acronym>GDM</acronym></application> package contains
<command>gdm</command>,
<command>gdm-binary</command>,
<command>gdmXnest</command>,
<command>gdmXnestchooser</command>,
<command>gdmchooser</command>,
<command>gdmflexiserver</command>,
<command>gdmgreeter</command>,
<command>gdmlogin</command>,
<command>gdmphotosetup</command>,
<command>gdmsetup</command>,
<command>gdmthemetester</command>,
<command>gdm-restart</command>,
<command>gdm-safe-restart</command>,
<command>gdm-stop</command>,
<command>gdmconfig</command>,
<command>gdmopen</command> and
<command>gdmtranslate</command>.</para>

</sect2>

<sect2><title>Description</title>

<sect3><title>gdm</title>
<para><command>gdm</command> is a wrapper script to execute the
<application><acronym>GDM</acronym></application> binary, the configurable
<application><acronym>GNOME</acronym></application> based login prompt.</para></sect3>

<sect3><title>gdmchooser</title>
<para><command>gdmchooser</command> is an application for selecting
<acronym>XDMCP</acronym> enabled hosts on
the local network.</para></sect3>

<sect3><title>gdmsetup</title>
<para><command>gdmsetup</command> is a graphical interface to edit the
<filename>gdm.conf</filename>.</para></sect3>

<sect3><title>gdm-restart and gdm-safe-restart</title>
<para><command>gdm-restart</command> sends the <acronym>HUP</acronym>
signal and <command>gdm-safe-restart</command> sends the
<acronym>USR</acronym>1 signal to the
<application><acronym>GDM</acronym></application>daemon so that it restarts. They are used after the
config file is edited.</para></sect3>

<sect3><title>gdmconfig</title>
<para><command>gdmconfig</command> is an application for managing the configuration of the
entire <application>GDM</application> applications suite.  It handles look and feel, security,
<acronym>XDMCP</acronym>, GDMchooser and more.</para></sect3>

</sect2>

</sect1>