1、检查 DHCP服务是否安装

#chkconfig | grep dhcpd

如果没有则安装

# yum install dhcp

2、查找配置示例文件，并复制到/etc/dhcp/dhcpd.conf

#cp `find /usr/share -name “dhcpd.conf.sample”` /etc/dhcp/dhcpd.conf

3、编辑配置文件

#vim /etc/dhcp/dhcpd.conf

留下头几行的整体设置，删除不需要的子域设置，留下一个

    整体配置文件如下

#=============================================================

# dhcpd.conf
#
# Sample configuration file for ISC dhcpd
#

# option definitions common to all supported networks…
option domain-name “example.org”;
option domain-name-servers ns1.example.org, ns2.example.org;

default-lease-time 600;
max-lease-time 7200;

# Use this to enble / disable dynamic dns updates globally.
#ddns-update-style none;

# If this DHCP server is the official DHCP server for the local
# network, the authoritative directive should be uncommented.
#authoritative;

# Use this to send dhcp log messages to a different log file (you also
# have to hack syslog.conf to complete the redirection).
log-facility local7;

# No service will be given on this subnet, but declaring it helps the
# DHCP server to understand the network topology.

# A slightly different configuration for an internal subnet.

subnet 152.10.0.0 netmask 255.255.0.0 {
  range 152.10.1.2 152.10.1.245;
  option routers 152.10.0.1;
  option broadcast-address 152.10.255.255;
}
~
#===================================================================

4、如果有双网卡则需要设置DHCP的网卡监听接口

# vim /etc/sysconfig/dhcpd

    配置文件如下

# Command line options here
DHCPDARGS=eth1

5、重启服务

# service dhcpd restart

OK!  完成