source: server/mail/postfix/postfix-config.xml@ 896104b1

<sect2>
<title>Configuring postfix</title>

<sect3><title>Config files</title>
<para><userinput>/etc/aliases, /etc/postfix/main.cf</userinput> and <userinput>/etc/postfix/master.cf</userinput></para>
</sect3>

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

<para><screen><userinput>cat &gt; /etc/aliases &lt;&lt; "EOF"</userinput>
# Begin /etc/aliases

MAILER-DAEMON:    postmaster
postmaster:       root

root:             LOGIN
# End /etc/aliases
<userinput>EOF</userinput></screen></para>

<para>The /etc/aliases file that was just created, the main.cf and the 
master.cf must be personalized for your system. The aliases file needs your 
non-root login identity so mail addressed to root can be forwarded to 
you at the user level.  The main.cf file needs your fully qualified 
hostname.  The master.cf needs to be modified to prevent your machine from 
becoming a relay for unauthorized entities.  All of these edits can be done 
with sed commands entered into the console with appropriate substitutions of 
your non-root login name for [user] and your fully qualified hostname for 
[localhost.localdomain]. These edits will create a single host mail system, 
other edits are necessary to perform the many other functions available.  
You will find the main.cf file is self documenting, so load it into your editor to make the changes you need for your situation.</para>

<para><screen><userinput>cp /etc/aliases /etc/aliases.bak
cp /etc/postfix/main.cf /etc/postfix/main.cf.bak
cp /etc/postfix/master.cf /etc/postfix/master.cf.bak
sed "s/LOGIN/[user]/" /etc/aliases.bak > /etc/aliases
sed "s/#myhostname = host.domain.tld/myhostname = \ 
        [localhost.localdomain]/" \
        /etc/postfix/main.cf.bak > /etc/postfix/main.cf
sed '/^smtp.*smtpd$/s/inet/unix/' /etc/postfix/master.cf.bak > \
        /etc/postfix/master.cf
/usr/bin/newaliases
/usr/sbin/postfix start</userinput></screen></para></sect3>

<sect3><title>postfix init.d script</title>

<para>To automate the running of postfix, use following command to create the init.d script:</para>

<para><screen><userinput>cat &gt; /etc/rc.d/init.d/postfix &lt;&lt; "EOF"</userinput>
#!/bin/sh
# Begin $rc_base/init.d/postfix

# Based on sysklogd script from LFS-3.1 and earlier.
# Rewritten by Gerard Beekmans  - gerard@linuxfromscratch.org

source /etc/sysconfig/rc
source $rc_functions

case "$1" in

        start)
        echo "Starting Postfix..."
        loadproc postfix start
        ;;

        stop)
        echo "Stopping Postfix..."
        loadproc postfix stop
        ;;
                
        reload)
        echo "Reloading Postfix..."
        loadproc postfix reload
        ;;

        restart)
        $0 stop
        sleep 1
        $0 start
        ;;

        *)
        echo "Usage: $0 {start|stop|reload|restart}"
        exit 1
        ;;
esac

# End $rc_base/init.d/postfix
<userinput>EOF
chmod 755 /etc/rc.d/init.d/postfix</userinput></screen></para>

<para>Create the symbolic links to this file in the relevant rc.d directory with the following commands:

<screen><userinput>cd /etc/rc.d/init.d &amp;&amp;
ln -sf ../init.d/postfix ../rc0.d/K25postfix &amp;&amp;
ln -sf ../init.d/postfix ../rc1.d/K25postfix &amp;&amp;
ln -sf ../init.d/postfix ../rc2.d/K25postfix &amp;&amp;
ln -sf ../init.d/postfix ../rc3.d/S35postfix &amp;&amp;
ln -sf ../init.d/postfix ../rc4.d/S35postfix &amp;&amp;
ln -sf ../init.d/postfix ../rc5.d/S35postfix &amp;&amp;
ln -sf ../init.d/postfix ../rc6.d/K25postfix</userinput></screen></para>
</sect3>

</sect2>