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查看是否运行dhcp服务: ps aux | grep dhcp |grep -v grep 4:关闭 dhcpd /etc/init.d/dhcpd stop 5:开启 hdcpd/etc/init.d/dhcpd start