VM VirtualBox starts the network error mtu 1500 qdisc pfifo_fast state up group default qlen 1000
Restart the enp0s3 network card, use the command ifup enp0s3 to restart
The conflict between network and NetworkManager is caused. NetworkManager is generally used for Linux systems with desktop environments installed. In general, we can directly use the following orders to prohibit the use of NetworkManager.
You can enter ip addr or ip a, just check the ip address
