Ubuntu DHCP 服务配置
#安装DHCP服务
sudo apt-get install dhcp3-server
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#配置DHCP网卡
emacs /etc/default/isc-dhcp-server
#改为对应网卡
INTERFACES="eth0"
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（eth0 可能要设置一个IP地址做网关）

#备份当前配置
sudo cp /etc/dhcp/dhcpd.conf /etc/dhcp3/dhcpd.conf.bak
#编辑当前配置
sudo vi /etc/dhcp/dhcpd.conf #删掉所有内容
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#emacs /etc/dhcp/dhcpd.conf

ddns-update-style none;
option domain-name "tagpt.mtn";
default-lease-time 14400;
#最小租约14400秒=4小时
max-lease-time 36000;
#最大租约36000秒=10小时
subnet 192.168.2.0 netmask 255.255.255.0 {
#IP地址起止范围
range 192.168.2.77 192.168.2.240;
option subnet-mask 255.255.255.0;
#子网掩码 255.255.255.0
option routers 192.168.2.10;
#默认网关 192.168.2.10
option broadcast-address 192.168.2.255;
#广播地址 192.168.2.255
}
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sudo /etc/init.d/isc-dhcp-server restart
或
service isc-dhcp-server restart
 
客户端设置为dhcp获取IP即可