虚拟机不显示网卡IP地址

# 查看 networ 服务状态
systemctl status network
## Loaded: loaded
## Active: failed
# 启动 networ 服务
systemctl start network
## Job for network.service failed because the control process exited with error code. See "systemctl status network.service" and "journalctl -xe" for details.

# 1、关闭 NetworkManger 服务
service NetworkManager stop
# 2、禁止开机启动 NetworkManager 服务
chkconfig NetworkManager off
# 3、重启 networ 服务
service network restart