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<!-- retain these comments for translator revision tracking -->
<!-- original version: 29400 -->
<sect2 condition="supports-dhcp" id="dhcpd">
<!-- <title>Setting up a DHCP server</title> -->
<title>Attivare un server DHCP</title>
<para>
<!-- One free software DHCP server is ISC <command>dhcpd</command>.
In &debian;, this is available in the <classname>dhcp</classname>
package. Here is a sample configuration file for it (usually
<filename>/etc/dhcpd.conf</filename>): -->
Un server DHCP libero è <command>dhcpd</command> di ISC. In &debian; è
disponibile nel pacchetto <classname>dhcp</classname>. Questo è un esempio
del file di configurazione per questo server (di solito
<filename>/etc/dhcpd.conf</filename>):
<informalexample><screen>
option domain-name "example.com";
option domain-name-servers ns1.example.com;
option subnet-mask 255.255.255.0;
default-lease-time 600;
max-lease-time 7200;
server-name "servername";
subnet 192.168.1.0 netmask 255.255.255.0 {
range 192.168.1.200 192.168.1.253;
option routers 192.168.1.1;
}
host clientname {
filename "/tftpboot/tftpboot.img";
server-name "servername";
next-server servername;
hardware ethernet 01:23:45:67:89:AB;
fixed-address 192.168.1.90;
}
</screen></informalexample>
<!-- Note: the new (and preferred) <classname>dhcp3</classname> package uses
<filename>/etc/dhcp3/dhcpd.conf</filename>. -->
Nota: il nuovo (e da preferire) pacchetto <classname>dhcp3</classname> usa il
file <filename>/etc/dhcp3/dhcpd.conf</filename>.
</para><para>
<!-- In this example, there is one server
<replaceable>servername</replaceable> which performs all of the work
of DHCP server, TFTP server, and network gateway. You will almost
certainly need to change the domain-name options, as well as the
server name and client hardware address. The
<replaceable>filename</replaceable> option should be the name of the
file which will be retrieved via TFTP. -->
In questo esempio c'è una macchina <replaceable>servername</replaceable>
che fa da server DHCP, da server TFTP e da gateway di rete. Sicuramente è
necessario cambiare le opzioni domain-name e anche il nome del server e
l'indirizzo hardware del client. Il valore dell'opzione
<replaceable>filename</replaceable> deve essere il nome del file che
verrà recuperato tramite TFTP.
</para><para>
<!-- After you have edited the <command>dhcpd</command> configuration file,
restart it with <userinput>/etc/init.d/dhcpd restart</userinput>. -->
Dopo aver modificato il file di configurazione di <command>dhcpd</command>
riavviarlo con <userinput>/etc/init.d/dhcpd restart</userinput>.
</para>
<sect3 arch="i386">
<!-- <title>Enabling PXE Booting in the DHCP configuration</title> -->
<title>Abilitare l'avvio PXE nella configurazione di DHCP</title>
<para>
<!-- Here is another example for a <filename>dhcp.conf</filename> using the
Pre-boot Execution Environment (PXE) method of TFTP. -->
Questo è un altro esempio di <filename>dhcp.conf</filename> che usa il
metodo PXE (Pre-boot Execution Environment) di TFTP.
<informalexample><screen>
option domain-name "example.com";
default-lease-time 600;
max-lease-time 7200;
allow booting;
allow bootp;
# The next paragraph needs to be modified to fit your case
subnet 192.168.1.0 netmask 255.255.255.0 {
range 192.168.1.200 192.168.1.253;
option broadcast-address 192.168.1.255;
# the gateway address which can be different
# (access to the internet for instance)
option routers 192.168.1.1;
# indicate the dns you want to use
option domain-name-servers 192.168.1.3;
}
group {
next-server 192.168.1.3;
host tftpclient {
# tftp client hardware address
hardware ethernet 00:10:DC:27:6C:15;
filename "/tftpboot/pxelinux.0";
}
}
</screen></informalexample>
<!-- Note that for PXE booting, the client filename
<filename>pxelinux.0</filename> is a boot loader, not a kernel image
(see <xref linkend="tftp-images"/> below). -->
Notare che con l'avvio PXE, il nome del file client
<filename>pxelinux.0</filename> è il bootloader, non l'immagine del kernel
(si consulti <xref linkend="tftp-images"/>).
</para>
</sect3>
</sect2>
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