dhcp 动态ip的获取

                                  dhcp

   1  yum  install dhcp.x86_64 #安装   

   2  cd /etc/dhcp/

   3  ls

   4  vim dhcpd.conf

   5  cp /usr/share/doc/dhcp*/dhcpd.conf.example /etc/dhcp/dhcpd.conf #复制模版到dchp的配置文件

  

  6  vim dhcpd.conf

****** dhcpd.conf*********

  7 option domain-name "example.com"; #域名

  8 option domain-name-servers 114.114.114.114; #客户端的dns

  9

 10 default-lease-time 600;   #有效时间

 11 max-lease-time 7200;      #最长有效时间

 27

 28 # This is a very basic subnet declaration.

 29

 30 subnet 172.25.254.0#网络位，子网地址 netmask 255.255.255.0#子网掩码 {

 31   range 172.25.254.200 172.25.254.210;#ip范围

 32   option routers 172.25.254.250;#定义网关地址

 33 }
 34
 

 7  systemctl start dhcpd

 8  systemctl enable dhcpd

 

9  cat /var/lib/dhcpd/dhcpd.leases#查看dhcp地址

server :在拔断网线的情况下，reset server ,ifconfig查看dhcp所给动态ip

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