====== 07 DHCPD ======

ISC-DHCPを使いDHCPサーバを立ててみる

====== portsから ======
<code>
 # cd /usr/ports/net/isc-dhcp3-server
 # make install clean
 # cp /usr/local/etc/dhcpd.conf.sample /usr/local/etc/dhcpd.conf
 # chmod 644 /usr/local/etc/dhcpd.conf
</code>

====== ソースを持ってくる ======

ISC http://www.isc.org より最新のtarballをダウンロードする。
最新はdhcp-3.0.2.tar.gz(2005年6月25日現在)
<code>
 > wget ftp://ftp.isc.org/isc/dhcp/dhcp-3.0.2.tar.gz
</code>

====== ソースの展開 ======
<code>
 > tar zxvf dhcp-3.0.2.tar.gz
</code>

====== インストール ======
<code>
 > cd ./dhcp-3.0.2.tar.gz
 > make  
 > su
 # make install
</code>

====== 設定ファイルを編集 ======

▼設定例
<code>
 # dhcpd.conf
 
 # Dominio.
 option domain-name "mydomain.co.jp";
 
 # Servidores DNS.
 option domain-name-servers 192.168.1.1, 210.147.240.193;
 
 # Servidores WINS.
 # Descomentar caso utilizado.
 #option netbios-name-servers 10.10.0.9;
 
 # Tempo padrao de alocacao em segundos.
 # Se o cliente nao especificar nenhum periodo de tempo
 # sera atribuido este.
 default-lease-time 600;
 
 # Tempo maximo de alocacao em segundos.
 # Tempo maximo que o cliente podera alocar o IP.
 # Apos isso deve renovar a alocacao.
 max-lease-time 7200;
 
 # Nao tentar atualizar o DNS.
 ddns-update-style none;
 
 # Caso este servidor nao seja o oficial para esta rede o
 # parametro abaixo devera ser comentado.
 authoritative;
 
 # O log eh feito pelo syslog.
 log-facility local6;
 
 # Declaracao de Subrede.
 subnet 192.168.1.0 netmask 255.255.255.0 {
 
         # Faixa de IPs disponiveis para alocar.
         range 192.168.1.11 192.168.1.20;
 
         # Gateway.
         option routers 192.168.1.1;
 
 }
 
 host ThinkPad {
 hardware ethernet 00:05:4E:45:58:04; 
 fixed-address 192.168.1.20; 
 } 
 host ValueStar{
 hardware ethernet 00:90:96:1B:83:FA;
 fixed-address 192.168.1.15;
 }
 host Dynabook{
 hardware ethernet 00:90:CC:6C:97:0D;
 fixed-address 192.168.1.11;
 }
</code> 

====== シェルを用意する/usr/local/etc/rc.d/dhcpd.sh ======
<code>
 #!/bin/sh
 
 case "$1" in
 start)
   touch /var/db/dhcpd.leases
   /usr/sbin/dhcpd rl0
   /sbin/route add -host 255.255.255.255 -iface rl0
   ;;
 
 stop)
   /sbin/route delete -host 255.255.255.255 -iface rl0
   pid=`ps -acx | grep " dhcpd" | awk '{print $1}'`
   kill ${pid}
   ;;
 
 *)
   echo "Usage: `basename $0` {start|stop}" >&2
   ;;
 esac
 
 exit 0
</code>

====== リース情報ログファイルを作成 ======
<code>
 # touch /var/db/dhcpd.leases
</code>

====== 起動する ======

▼設定が完了したら起動する
<code>
 # /usr/local/etc/rc.d/dhcp.sh start
</code>

{{tag>dhcp}}