source: postlfs/security/cyrus-sasl.xml@ a8c9494

<?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 cyrus-sasl-download-http "http://ftp.andrew.cmu.edu/pub/cyrus-mail/cyrus-sasl-&cyrus-sasl-version;.tar.gz ">
  <!ENTITY cyrus-sasl-download-ftp  "ftp://ftp.andrew.cmu.edu/pub/cyrus-mail/cyrus-sasl-&cyrus-sasl-version;.tar.gz">
  <!ENTITY cyrus-sasl-size          "1.5 MB">
  <!ENTITY cyrus-sasl-buildsize     "13.5 MB">
  <!ENTITY cyrus-sasl-time          "0.25 SBU">
]>

<sect1 id="cyrus-sasl" xreflabel="Cyrus SASL-&cyrus-sasl-version;">
<?dbhtml filename="cyrus-sasl.html"?>
<title>Cyrus <acronym>SASL</acronym>-&cyrus-sasl-version;</title>

<sect2>
<title>Introduction to <application>Cyrus <acronym>SASL</acronym></application>
</title>

<para>The <application>Cyrus <acronym>SASL</acronym></application> package 
contains a Simple Authentication and Security Layer, a method for adding 
authentication support to connection-based protocols. To use 
<acronym>SASL</acronym>, a protocol includes a command for identifying and 
authenticating a user to a server and for optionally negotiating protection of 
subsequent protocol interactions. If its use is negotiated, a security layer 
is inserted between the protocol and the connection.</para>

<sect3><title>Package information</title>
<itemizedlist spacing="compact">
<listitem><para>Download (HTTP): <ulink url="&cyrus-sasl-download-http;"/></para></listitem>
<listitem><para>Download (FTP): <ulink url="&cyrus-sasl-download-ftp;"/></para></listitem>
<listitem><para>Download size: &cyrus-sasl-size;</para></listitem>
<listitem><para>Estimated Disk space required: &cyrus-sasl-buildsize;</para></listitem>
<listitem><para>Estimated build time: &cyrus-sasl-time;</para></listitem>
</itemizedlist>
</sect3>

<sect3><title><application>Cyrus <acronym>SASL</acronym></application> 
dependencies</title>
<sect4><title>Optional</title>
<para><xref linkend="Linux_PAM"/>, <xref linkend="openssl"/>, 
<xref linkend="heimdal"/> or <xref linkend="mitkrb"/>, 
<xref linkend="j2sdk"/>, <xref linkend="mysql"/>, <xref linkend="postgresql"/>, 
<xref linkend="db"/>, <xref linkend="gdbm"/>, <xref linkend="courier"/>, 
<ulink url="http://www.pdc.kth.se/kth-krb/">krb4</ulink> and 
<ulink url="http://sqlite.org/">SQLite</ulink>
</para>
</sect4>
</sect3>

</sect2>

<sect2>
<title>Installation of <application>Cyrus <acronym>SASL</acronym></application>
</title>

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

<screen><userinput><command>./configure --prefix=/usr --sysconfdir=/etc \
            --with-dbpath=/var/lib/sasl/sasldb2 \
            --with-saslauthd=/var/run &amp;&amp;
make &amp;&amp;
make install &amp;&amp;
install -m644 -oroot -groot saslauthd/saslauthd.mdoc \
    /usr/share/man/man8/saslauthd.8 &amp;&amp;
install -d -m755 /usr/share/doc/sasl &amp;&amp;
install -m644 -oroot -groot doc/{*.{html,txt,fig},ONEWS,TODO} \
    /usr/share/doc/sasl &amp;&amp;
install -m644 -oroot -groot saslauthd/LDAP_SASLAUTHD \
    /usr/share/doc/sasl &amp;&amp;
install -d -m700 /var/lib/sasl</command></userinput></screen>

</sect2>

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

<para><parameter>--with-dbpath=/var/lib/sasl/sasldb2</parameter>: This 
parameter forces the <command>saslauthd</command> database to be created
in <filename class='directory'>/var/lib/sasl</filename> instead of 
<filename class='directory'>/etc</filename>.</para>

<para><parameter>--with-saslauthd=/var/run</parameter>: This parameter forces 
<command>saslauthd</command> to use the <acronym>FHS</acronym> compliant 
directory <filename class='directory'>/var/run</filename> for variable run-time 
data.</para>

<para><command>install -m644 -oroot -groot ...</command>: These commands 
install documentation which is not installed by the 
<command>make install</command> command.</para>

<para><command>install -d -m700 /var/lib/sasl</command>: This directory must 
exist when starting <command>saslauthd</command>. If you're not going to be 
running the daemon, you may omit the creation of this directory.
</para>

</sect2>

<sect2>
<title>Configuring <application>Cyrus <acronym>SASL</acronym></application></title>

<sect3><title>Config Files</title>
<para><filename>/etc/saslauthd.conf</filename> (for <acronym>LDAP</acronym> 
configuration) and <filename>/usr/lib/sasl2/Appname.conf</filename> (where 
"Appname" is the application defined name of the application)</para>
</sect3>

<sect3><title>Configuration Information</title>
<para>See <ulink url="file:///usr/share/doc/sasl/sysadmin.html"/> for 
information on what to include in the application configuration files. See 
<ulink url="file:///usr/share/doc/sasl/LDAP_SASLAUTHD"/> for configuring 
<command>saslauthd</command> with <acronym>LDAP</acronym>.</para>
</sect3>

<sect3><title>Init Script</title>
<para>If you need to run the <command>saslauthd</command> daemon at system 
startup, install the <filename>/etc/rc.d/init.d/cyrus-sasl</filename>
init script included in the 
<xref linkend="intro-important-bootscripts"/> package.</para>

<screen><userinput><command>make install-cyrus-sasl</command></userinput></screen>

<note><para>You'll need to modify the init script and replace the 
<parameter><replaceable>[authmech]</replaceable></parameter> parameter to the 
<parameter>-a</parameter> switch with your desired authentication mechanism.
</para></note>
</sect3>

</sect2>

<sect2>
<title>Contents</title>

<para>The <application>Cyrus <acronym>SASL</acronym></application> package 
contains <command>saslauthd</command>, <command>sasldblistusers2</command>, 
<command>saslpasswd2</command>, <application>Cyrus 
<acronym>SASL</acronym></application> plugins, the 
<filename class='libraryfile'>libsasl2</filename> library and optionally the 
<filename class='libraryfile'>libjavasasl</filename> library and 
<acronym>SASL</acronym> Java classes.</para>

</sect2>

<sect2><title>Description</title>

<sect3><title>saslauthd</title>
<para><command>saslauthd</command> is the <acronym>SASL</acronym> 
authentication server.</para></sect3>

<sect3><title>sasldblistusers2</title>
<para><filename>sasldblistusers2</filename> is used to list the users in the 
<acronym>SASL</acronym> password database.</para></sect3>

<sect3><title>saslpasswd2</title>
<para><filename>saslpasswd2</filename> is used to set and delete a user's 
<acronym>SASL</acronym> password and mechanism specific secrets in the 
<acronym>SASL</acronym> password database.</para></sect3>

</sect2>

</sect1>