需求：

DHCP
•为客户端分配IP范围是10.10.100.1-10.10.100.50；
•DNS：按照实际需求配置DNS服务器地址选项；
•GATEWAY：按照实际需求配置网关地址选项。

步骤：

安装dhcp

apt install  isc-dhcp-server -y

查看网卡名

ip addr

修改监听配置

vim  /etc/default/isc-dhcp-server

备份配置文件

mv /etc/dhcp/dhcpd.conf /etc/dhcp/dhcpd.conf.bak

写入配置

vim /etc/dhcp/dhcpd.conf

配置格式

ddns-update-style none;
subnet ${子网:10.10.100.0} netmask ${子网掩码:255.255.255.0}{
	range ${开始IP:10.10.100.1} ${10.10.100.50};
	option subnet-mask ${子网掩码:255.255.255.0};
	option routers ${网关地址:10.10.100.2};
	option domain-name "${域名：dhcp.com}";
	option domain-name-servers ${DNS服务器IP地址：114.114.114.114};
	default-lease-time 3600;
	max-lease-time 7200;
}

ddns-update-style none;
subnet 10.10.100.0 netmask 255.255.255.0 {
	range 10.10.100.1 10.10.100.50;
	option subnet-mask 255.255.255.0;
	option routers 10.10.100.2;
	option domain-name "ChinaSkills.cn";
	option domain-name-servers 114.114.114.114;
	default-lease-time 3600;
	max-lease-time 7200;
}

重启服务

systemctl restart isc-dhcp-server

测试

在VMware中关闭dhcp

参考：Debian10快速部署DHCP服务 作者：坐公交也用券