DHCP

服務器的配置：
1，配置固定ip
[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=static
HWADDR=00:0C:29:82:09:E9
ONBOOT=yes
IPADDR=192.168.1.254
NETMASK=255.255.255.0
[root@localhost ~]# /etc/init.d/network restart
[root@localhost ~]# chkconfig network on
[root@localhost ~]# ifconfig eth0 | grep "inet addr"
inet addr:192.168.10.10 Bcast:192.168.10.255 Mask:255.255.255.0
2，安裝dhcp軟件包
[root@localhost ~]# umount /dev/cdrom
[root@localhost ~]# mount /dev/cdrom /media/
mount: block device /dev/cdrom is write-protected, mounting read-only
[root@localhost ~]# rpm -ivh /media/Server/dhcp-3.0.5-31.el5_8.1.x86_64.rpm
3，修改主配置文件
[root@localhost ~]# cat /etc/dhcpd.conf 修改主配置文件
ddns-update-style interim;
subnet 192.168.1.0 netmask 255.255.255.0 { 宣告分發的網段
option routers 192.168.1.254; 網關
option subnet-mask 255.255.255.0; 子網掩碼
option domain-name "xuexi.com"; 域
option domain-name-servers 192.168.10.254; DNS地址
range dynamic-bootp 192.168.10.20 192.168.10.50; 下發地址段
default-lease-time 21600; 默認租約期
max-lease-time 43200; 最大租約期
host ns {

保留的地址

hardware ethernet 12:34:56:78:AB:CD;
fixed-address 207.175.42.254;
}
}
4，啓動dhcp服務
[root@localhost ~]# rpm -ql dhcp | grep init.d
/etc/rc.d/init.d/dhcpd
/etc/rc.d/init.d/dhcrelay
[root@localhost ~]# /etc/init.d/dhcpd start
[root@localhost ~]# chkconfig dhcpd on
[root@localhost ~]# netstat -tulnp | grep dhcpd
udp 0 0 0.0.0.0:67 0.0.0.0:* 5512/dhcpd