LINUX-DHCP

#
# DHCP Server Configuration file.
#   see /usr/share/doc/dhcp*/dhcpd.conf.example
#   see dhcpd.conf(5) man page

DHCPDARGS=enp4s0;
ddns-update-style interim;     #配置使用过渡性 DHCP-DNS互动更新模式。  
ignore client-updates;         #忽略客户端更新  


subnet 192.168.1.0 netmask 255.255.255.0 {  
 
        option routers                  192.168.1.1;        #路由器地址  
        option subnet-mask              255.255.255.0;      #子网掩码选项 
        range dynamic-bootp 192.168.1.5 192.168.1.254;       #租用IP地址的范围   
	option domain-name              "marknum.com";
	option domain-name-servers       192.168.1.1;
	option time-offset              -18000; # Eastern Standard Time
	default-lease-time 21600;    #缺省租约时间
	max-lease-time 43200;        #最大租约时间
}

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LINUX-DHCP

原文：http://gengzg.iteye.com/blog/2238214