CentOS-DHCP服务搭建

title	date	tags	layout
CentOS6.5 DHCP服务器搭建	2018-08-26	Centos6.5服务器搭建	post

1.安装dhcp软件包

---

yum install -y dhcp*

2.查看dhcpd.conf配置文件

vim /etc/dhcpd.conf

[root@localhost ~]# cat /etc/dhcp/dhcpd.conf
#
# DHCP Server Configuration file.
#   see /usr/share/doc/dhcp*/dhcpd.conf.sample
#   see 'man 5 dhcpd.conf'
#};

可以看到是要我们借鉴这个模板文件

3.更改dhcpd.conf文件

cp /usr/share/doc/dhcp-4.1.1/dhcpd.conf.sample /etc/dhcpd.conf

vim /etc/dhcpd.conf

文件很长 这里我们只需要留下这些 并稍作修改

subnet 192.168.150.0 netmask 255.255.255.0 {        #指定网络及子网掩码
  range 192.168.150.100 192.168.150.200;        #设置分配的ip地址范围
  option domain-name-servers 192.168.150.11;        #指定dns服务器的地址
  option domain-name "da1sy.com";       #域名，同上，可参考/etc/resolv.conf
  option routers 192.168.150.11;        #网关地址
  option broadcast-address 192.168.150.255;       #广播地址
  default-lease-time 600;       #默认租约
  max-lease-time 7200;        #最大租约
}
host fantasia {
  hardware ethernet 08:00:07:26:c0:a5;    #指定对应主机的MAC地址
  fixed-address 192.168.150.11;                #指定为该主机保留的IP地址
}

4.设置IP地址

vim /etc/sysconfig/network-scripts/ifcfg-eth0
添加IP地址

IPADDR=192.168.150.11
NETMASK=255.255.255.0

5.启动服务

service dhcpd start

多作用域

ddns-update-style interim;        #动态 DNS 的更新方式
ignore client-updates;            #不允许客户机更新 DNS 记录
subnet 192.168.150.0 netmask 255.255.255.0 {
  range 192.168.150.100 192.168.150.200;
  option domain-name-servers 192.168.150.11;
  option domain-name "da1sy.com";
  option routers 192.168.150.11;
  option broadcast-address 192.168.150.255;
  default-lease-time 600;
  max-lease-time 7200;
}
subnet 192.168.200.0 netmask 255.255.255.0 {
  range 192.168.200.100 192.168.200.200;
  option domain-name-servers 192.168.150.11;
  option domain-name "da1sy.com";
  option routers 192.168.200.11;
  option broadcast-address 192.168.150.255;
  default-lease-time 600;
  max-lease-time 7200;
}

超级作用域

ddns-update-style interim;
ignore client-updates;
shared-network da1sy{         #超级作用于名称
subnet 192.168.150.0 netmask 255.255.255.0 {
  range 192.168.150.100 192.168.150.200;
  option domain-name-servers 192.168.150.11;
  option domain-name "da1sy.com";
  option routers 192.168.150.11;
  option broadcast-address 192.168.150.255;
  default-lease-time 600;
  max-lease-time 7200;
}
subnet 192.168.200.0 netmask 255.255.255.0 {
  range 192.168.200.100 192.168.200.200;
  option domain-name-servers 192.168.150.11;
  option domain-name "da1sy.com";
  option routers 192.168.200.11;
  option broadcast-address 192.168.150.255;
  default-lease-time 600;
  max-lease-time 7200;
}