三、ifconfig # ifconfig eth0 down # ifconfig eth0 up
Ubuntu14.04修改配置，重启网卡没有生效，出现如下问题：
service networking restart //重启网络服务 stop: Job failed while stopping start: Job is already running: networking
tail -f /var/log/upstart/networking.log //查看错误日志 Stopping or restarting the networking job is notsupported. Use ifdown & ifup to reconfigure desired interface.
