刚装完CentOs但不能上网,很是纠结。
service network restart出现下面错误:
Error: Connection activation failed: Device not managed by NetworkManager
原因:系统中有两个服务在管理网络,所以需要停掉一个
解决方案:
1、Remove Network Manager from startup Service
#chkconfig NetworkManager off
2. Add Default NetManager
#chkconfig network on
3.Stop NetworkManager first
#service NetworkManager stop
4.and then start Default Manager
#service network restart