source: server/other/dhcp/dhcp-config.xml@ 369af35a

<sect2>
<title>Configuring <application><acronym>DHCP</acronym></application></title>

<sect3><title>Config files</title>
<para><filename>/etc/dhclient.conf</filename></para>
</sect3>

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

<para>Information on configuring the <acronym>DHCP</acronym> client can be 
found in Chapter 14.</para>

<para>Note that you only want to start the <acronym>DHCP</acronym> server if 
you want to issue <acronym>LAN</acronym> addresses over your network.  The 
<acronym>DHCP</acronym> client doesn't need this script to be used.  Also note 
that this script is coded for the <emphasis role="strong">eth1</emphasis> 
interface, which may need to be modified for your hardware configuration. 
With that in mind the <application><acronym>DHCP</acronym></application> init.d script can be created
using the following commands.</para>

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

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

. /etc/sysconfig/rc
. $rc_functions

case "$1" in
        start)
                echo "Starting DHCP Server..."
                loadproc dhcpd -q eth1
                ;;

        stop)
                echo "Stopping DHCP Server..."
                killproc dhcpd
                ;;

        reload)
                echo "Reloading DHCP Server..."
                reloadproc dhcpd
                ;;

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

        status)
                statusproc dhcpd
                ;;

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

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

<para>The lease file must exist on startup.  The following command will
satisfy that requirement:</para>

<screen><userinput><command>touch /var/state/dhcp/dhcpd.leases</command></userinput></screen>

<para>The follow commands will create a base configuration file for a
<acronym>DHCP</acronym> server.  There are several options that you may want to
add (information that is passed back to the <acronym>DHCP</acronym> client) and 
those are covered in the man pages for <filename>dhcp.conf</filename>.</para>

<screen><userinput><command>cat &gt; /etc/dhcpd.conf &lt;&lt; "EOF"</command>
default-lease-time 72000;
max-lease-time 144000;
ddns-update-style ad-hoc;

subnet 192.168.5.0 netmask 255.255.255.0 {
  range 192.168.5.10 192.168.5.240;
  option broadcast-address 195.168.5.255;
  option routers 192.168.5.1;
}
<command>EOF</command></userinput></screen>

<para>All addresses should be changed to meet your circumstance.</para>

</sect3>

</sect2>