1. 查看是否设置开机启动chkconfig --list | grep dhcpd2. 查看端口是否打开netstat -anulp | grep :673.查看服务状态/etc/init.d/dhcpd status
/etc/init.d/dhcpd start 启动DHCP/etc/init.d/dhcpd restart 重启DHCPchkconfig dhcpd on 自动启动这项服务
