ubuntu network is unreachable使网络生效 service networking restart – 无效 sudo /etc/init.d/networking restart --生效ok版权声明：本文为weixin_44740398原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接和本声明。原文链接：https://blog.csdn.net/weixin_44740398/article/details/109268810