CentOS  DHCP

CentOS DHCP

CentOS DHCP

安装

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yum update
yum install dhcp -y

修改 ip

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vim /etc/sysconfig/network-scripts/ifcfg-eth2
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DEVICE="eth2"
BOOTPROTO=static
HWADDR="00:0D:29:G1:2D:3B"
NM_CONTROLLED="yes"
ONBOOT="yes"
BOOTPROTO="none"
IPADDR=192.168.22.11
NETMASK=255.255.255.0
GATEWAY=192.168.22.1
  • 重启网络
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service network restart
systemctl network restart

服务端配置

  • 路径
dhcpd.conf
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/etc/dhcp/dhcpd.conf
  • 复制 dhcpd.conf.samplle
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cp -p /usr/share/doc/dhcp-6.1.1/dhcpd.conf.sample /etc/dhcp/dhcpd.conf
  • 配置文件设置
/etc/dhcp/dhcpd.conf
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ddns-update-style interim;// dhcp 服务器和dns 服务器的动态信息更新模式     
ignore client-updates;      
default-lease-time 259200; #预设租约为 3 天
max-lease-time 518400; # 最大租约为 6 天

subnet 192.168.22.0 netmask 255.255.255.0 {
option routers 192.168.22.254;#预设路由
option subnet-mask 255.255.255.0;
option domain-search "vitan.me"; # 给予一个领域名
option domain-name-servers 192.168.22.1;
option time-offset -18000; #时区
range 192.168.1.10 192.168.1.100;

# 关于固定的 IP
host win7 {
hardware ethernet 08:00:27:11:EB:C2; #客户端网卡 MAC
fixed-address 192.168.100.30; #给予固定的 IP
}
}
  • 启动
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service dhcpd start
systemctl start dhcp #CentOs 7
dhcpd # 检测错误
chkconfig --levels 235 dhcpd on # 开机启动

客户端配置

ifcfg.eth2
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vim /etc/sysconfig/network-scripts/ifcfg-eth2
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DEVICE="eth2"
BOOTPROTO=dhcp
HWADDR="00:0D:29:G1:2D:3B"
NM_CONTROLLED="yes"
ONBOOT="yes"
BOOTPROTO="none"
IPADDR=192.168.22.100
NETMASK=255.255.255.0
GATEWAY=192.168.22.1
  • 重启网络
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ifdown eth2
ifup eth2

service network restart

查看租约情况

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cat /var/pib/dhcpd/dhcpd.leases

  Linux

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