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git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@3335 af4574ff-66df-0310-9fd7-8a98e5e911e0
319 lines
12 KiB
XML
319 lines
12 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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"http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../../general.ent">
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%general-entities;
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<!ENTITY exim-download-http "http://www.exim.org/ftp/exim4/exim-&exim-version;.tar.bz2">
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<!ENTITY exim-download-ftp "ftp://ftp.exim.org/pub/exim/exim4/exim-&exim-version;.tar.bz2">
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<!ENTITY exim-size "1.4 MB">
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<!ENTITY exim-buildsize "14.9 MB">
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<!ENTITY exim-time "0.14 SBU">
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]>
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<sect1 id="exim" xreflabel="Exim-&exim-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="exim.html"?>
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<title><application>Exim</application>-&exim-version;</title>
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<sect2>
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<title>Introduction to <application>Exim</application></title>
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<para>The <application>Exim</application> package contains a Mail Transport
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Agent written by the University of Cambridge, released under the
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<acronym>GNU</acronym> Public License.</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="&exim-download-http;"/></para></listitem>
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<listitem><para>Download (FTP):
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<ulink url="&exim-download-ftp;"/></para></listitem>
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<listitem><para>Download size:
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&exim-size;</para></listitem>
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<listitem><para>Estimated disk space required:
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&exim-buildsize;</para></listitem>
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<listitem><para>Estimated build time:
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&exim-time;</para></listitem></itemizedlist>
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</sect3>
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<sect3><title>Additional downloads</title>
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<itemizedlist spacing="compact">
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<listitem><para>Required patch for Berkeley DB: <ulink
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url="&patch-root;/exim-&exim-version;-db43-1.patch"/></para>
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</listitem></itemizedlist>
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</sect3>
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<sect3><title><application>Exim</application> dependencies</title>
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<sect4><title>Required</title>
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<para><xref linkend="db"/> or
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<xref linkend="gdbm"/> or
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<ulink url="http://sourceforge.net/projects/tdb">TDB</ulink></para>
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</sect4>
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<sect4><title>Optional</title>
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<para>X (<xref linkend="xfree86"/> or <xref linkend="xorg"/>),
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<xref linkend="openldap"/>,
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<xref linkend="openssl"/> or
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<ulink url="http://www.gnu.org/software/gnutls/">GnuTLS</ulink>,
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<xref linkend="cyrus-sasl"/>,
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<xref linkend="mysql"/>,
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<xref linkend="postgresql"/>,
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<xref linkend="tcpwrappers"/> and
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<xref linkend="Linux_PAM"/></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>Exim</application></title>
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<para>Before building <application>Exim</application>, you should
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create the group and user exim which will run the
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<command>exim</command> daemon:</para>
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<para>If you have Berkeley DB installed, apply
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the following patch:</para>
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<screen><userinput><command>patch -Np1 -i ../exim-&exim-version;-db43-1.patch</command></userinput></screen>
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<screen><userinput><command>groupadd exim &&
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useradd -d /dev/null -c "Exim Daemon" -g exim -s /bin/false exim</command></userinput></screen>
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<para>Install <application>Exim</application> with the following
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commands:</para>
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<screen><userinput><command>sed -e 's,^BIN_DIR.*$,BIN_DIRECTORY=/usr/sbin,' src/EDITME | \
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sed -e 's,^CONF.*$,CONFIGURE_FILE=/etc/exim.conf,' | \
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sed -e 's,^EXIM_USER.*$,EXIM_USER=exim,' | \
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sed -e 's,^EXIM_MONITOR,#EXIM_MONITOR,' > Local/Makefile &&
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make &&
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make install &&
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install -v -m644 doc/exim.8 /usr/share/man/man8 &&
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install -v -d -m755 /usr/share/doc/exim-&exim-version; &&
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install -v -m644 doc/* /usr/share/doc/exim-&exim-version; &&
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ln -sv exim /usr/sbin/sendmail</command></userinput></screen>
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</sect2>
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<sect2>
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<title>Command explanations</title>
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<para><command>sed -e ... > Local/Makefile</command>: Most of
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<application>Exim</application>'s configuration options are compiled in using
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the directives in <filename>Local/Makefile</filename> which is created from
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the <filename>src/EDITME</filename> file. This command specifies the minimum
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set of options. Descriptions for the options are listed below.</para>
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<para><parameter>BIN_DIRECTORY=/usr/sbin</parameter>: This installs all of
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<application>Exim</application>'s binaries and scripts in
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<filename class='directory'>/usr/sbin</filename>.</para>
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<para><parameter>CONFIGURE_FILE=/etc/exim.conf</parameter>: This installs
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<application>Exim</application>'s main configuration file in
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<filename class='directory'>/etc</filename>.</para>
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<para><parameter>EXIM_USER=exim</parameter>: This tells
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<application>Exim</application> that after the daemon no longer needs root
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privileges, the process hands off the daemon to the exim user.</para>
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<para><parameter>#EXIM_MONITOR</parameter>: This defers building the
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<application>Exim</application> monitor program, as it requires
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<application>X</application> Window System support, by commenting out the
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<parameter>EXIM_MONITOR</parameter> line in the <filename>Makefile</filename>.
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If you wish to build the monitor program, omit this <command>sed</command>
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command and issue the following command before building the package (modify
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<filename>Local/eximon.conf</filename>, if necessary):
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<command>cp exim_monitor/EDITME Local/eximon.conf</command>.</para>
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<para><command>ln -s exim /usr/sbin/sendmail</command>: Creates a link to
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<command>sendmail</command> for applications which need it.
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<application>Exim</application> will accept most
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<application>Sendmail</application> command-line options.</para>
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</sect2>
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<sect2>
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<title>Adding additional functionality</title>
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<para>To utilize some or all of the dependency packages, you'll need to modify
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<filename>Local/Makefile</filename> to include the appropriate directives and
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parameters to link additional libraries before you build
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<application>Exim</application>. <filename>Local/Makefile</filename> is
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heavily commented with instructions on how to do this. Listed below is
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additional information to help you link these dependency packages.</para>
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<para>To use a backend database other than <application>Berkelely
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DB</application>, see the instructions at <ulink
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url="http://www.exim.org/exim-html-4.40/doc/html/spec_4.html#SECT4.3"/>.</para>
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<para>For <acronym>SSL</acronym> functionality, see the instructions at <ulink
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url="http://www.exim.org/exim-html-4.40/doc/html/spec_4.html#SECT4.6"/> and
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<ulink
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url="http://www.exim.org/exim-html-4.40/doc/html/spec_37.html#CHAP37"/>.</para>
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<para>For <application>tcpwrappers</application> functionality, see the
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instructions at <ulink
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url="http://www.exim.org/exim-html-4.40/doc/html/spec_4.html#SECT4.7"/>.</para>
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<para>For information about adding authentication mechanisms to the
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build, see the instructions at <ulink
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url="http://www.exim.org/exim-html-4.40/doc/html/spec_34.html#SECT34.4"/> For
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specific information about using <application>Cyrus-SASL</application>, see
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section 10 of the <filename>doc/NewStuff</filename> file located in the source
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tree.</para>
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<para>For information about linking <application>Linux-PAM</application>, see
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the instuctions at <ulink
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url="http://www.exim.org/exim-html-4.40/doc/html/spec_11.html#IX935"/>.</para>
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<para>For information about linking database engine libraries used for
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<application>Exim</application> name lookups, see the instuctions at <ulink
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url="http://www.exim.org/exim-html-4.40/doc/html/spec_9.html#CHAP9"/>.</para>
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<para>If you wish to add <application>Readline</application> support to
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<application>Exim</application> when invoked in <quote>test expansion</quote>
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(-bv) mode, see the information in section 8 of the
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<filename>doc/NewStuff</filename> file located in the source tree.</para>
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<para>You may wish to modify the default configuration and send log files to
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syslog instead of the default
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<filename class='directory'>/var/spool/exim/log</filename> directory. See the
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information at <ulink
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url="http://www.exim.org/exim-html-4.40/doc/html/spec_45.html#CHAP45"/>.</para>
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</sect2>
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<sect2>
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<title>Configuring Exim</title>
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<sect3><title>Config files</title>
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<para><filename>/etc/exim.conf</filename> and
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<filename>/etc/aliases</filename></para>
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</sect3>
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<sect3><title>Configuration Information</title>
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<para>A default (nothing but comments) <filename>/etc/aliases</filename> file
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is installed during the package installation if this file did not exist on
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your system. Create the necessary aliases and start the
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<application>Exim</application> daemon using the following commands:</para>
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<screen><userinput><command>cat >> /etc/aliases << "EOF"</command>
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postmaster: root
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MAILER-DAEMON: root
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<command>EOF
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exim -v -bi &&
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/usr/sbin/exim -bd -q15m</command></userinput></screen>
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<note><para>To protect an existing <filename>/etc/aliases</filename> file,
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the command above appends these aliases to it. This file should be checked and
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duplicate aliases removed, if present.</para></note>
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<para>The <command>/usr/sbin/exim -bd -q15m</command> command starts the
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<application>Exim</application> daemon with a 15 minute interval in processing
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the mail queue. Adjust this parameter to suit your desires.</para>
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<para>To automate the running of <command>exim</command> at startup, install
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the <filename>/etc/rc.d/init.d/exim</filename> init script included in the
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<xref linkend="intro-important-bootscripts"/> package.</para>
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<screen><userinput><command>make install-exim</command></userinput></screen>
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<para>The bootscript also starts the <application>Exim</application> daemon
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and dispatches a queue runner process every 15 minutes. Modify the
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<parameter>-q<replaceable>[time interval]</replaceable></parameter> parameter
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in <filename>/etc/rc.d/init.d/exim</filename>, if necessary for your
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installation.</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>Exim</application> package contains
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<command>exim</command>,
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<command>exim_dumpdb</command>,
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<command>exim_fixdb</command>,
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<command>exim_tidydb</command>,
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<command>exinext</command>,
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<command>exiwhat</command>,
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<command>exim_dbmbuild</command>,
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<command>exicyclog</command>,
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<command>exigrep</command>,
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<command>eximstats</command>,
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<command>exiqsumm</command>,
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<command>exiqgrep</command>,
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<command>exim_lock</command>,
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<command>exim_checkaccess</command> and optionally,
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<command>eximon</command> and
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<command>eximon.bin</command>.</para>
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</sect2>
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<sect2><title>Description</title>
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<sect3><title>exim</title>
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<para><command>exim</command> is the Mail Transport Agent daemon.</para></sect3>
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<sect3><title>exim_dumpdb</title>
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<para><command>exim_dumpdb</command> writes the contents of
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<application>Exim</application> databases to the standard output.</para></sect3>
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<sect3><title>exim_fixdb</title>
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<para><command>exim_fixdb</command> modifies data in
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<application>Exim</application> databases.</para></sect3>
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<sect3><title>exim_tidydb</title>
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<para><command>exim_tidydb</command> removes old records from
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<application>Exim</application> databases.</para></sect3>
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<sect3><title>exinext</title>
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<para><command>exinext</command> queries remote host retry times.</para></sect3>
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<sect3><title>exiwhat</title>
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<para><command>exiwhat</command> queries running
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<application>Exim</application> processes.</para></sect3>
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<sect3><title>exim_dbmbuild</title>
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<para><command>exim_dbmbuild</command> creates and rebuilds
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<application>Exim</application> databases.</para></sect3>
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<sect3><title>exicyclog</title>
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<para><command>exicyclog</command> cycles
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<application>Exim</application> log files.</para></sect3>
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<sect3><title>exigrep</title>
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<para><command>exigrep</command> searches
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<application>Exim</application> log files.</para></sect3>
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<sect3><title>eximstats</title>
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<para><command>eximstats</command> generates mail statistics from
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<application>Exim</application> log files.</para></sect3>
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<sect3><title>exiqsumm</title>
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<para><command>exiqsumm</command> produces a summary of the messages in the
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mail queue.</para></sect3>
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<sect3><title>exiqgrep</title>
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<para><command>exiqgrep</command> is an utility for selective queue
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listing.</para></sect3>
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<sect3><title>exim_lock</title>
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<para><command>exim_lock</command> locks a mailbox file.</para></sect3>
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<sect3><title>exim_checkaccess</title>
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<para><command>exim_checkaccess</command> states whether a given recipient
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address from a given host is acceptable or not.</para></sect3>
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</sect2>
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</sect1>
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