DHCP的搭建

系统 环境：

[[email protected] ~]# cat /etc/redhat-release

CentOS Linux release 7.2.1511 (Core)

[[email protected] ~]# uname -r

3.10.0-327.el7.x86_64

[[email protected] ~]# ip addr show enp0s8 | awk ‘NR==3{print $2}‘

192.168.235.36/24

[[email protected] ~]# yum install -y dhcp

[[email protected] ~]# cp -a /usr/share/doc/dhcp-4.2.5/dhcpd.conf.example /etc/dhcp/dhcpd.conf

[[email protected] ~]# cat /etc/dhcp/dhcpd.conf

subnet 192.168.235.0 netmask 255.255.255.0 {

range 192.168.235.10 192.168.235.20;

default-lease-time 600;

max-lease-time 7200;

}

#可以看到我们的配置非常少，此处主要演示是 安装服务 更多配置在  man 5 dhcpd.conf

[[email protected] ~]#  systemctl start dhcpd

[[email protected] ~]# setenforce 0

[[email protected] ~]# systemctl stop firewalld

另开启一台虚拟机windows server 2003  与 DHCP服务器在同一个VM里面

可以看到 windows server 2003 可以获取到 IP地址

[[email protected] ~]# cat /var/lib/dhcpd/dhcpd.leases

# The format of this file is documented in the dhcpd.leases(5) manual page.

# This lease file was written by isc-dhcp-4.2.5

server-duid "\000\001\000\001 k\264U\010\000‘x\377\204";

lease 192.168.235.10 {

starts 1 2017/03/27 11:32:21;

ends 1 2017/03/27 11:42:21;

cltt 1 2017/03/27 11:32:21;

binding state active;

next binding state free;

rewind binding state free;

hardware ethernet 08:00:27:2a:05:ad;                #客户机的MAC地址

uid "\001\010\000‘*\005\255";

client-hostname "cqwu-8b3601776c";

}