How does "Linux" solve the problem of Linux virtual machines not connected to the extranet on VMware?

>>> Failure Phenomena:
Virtual machine not connected to extranet?

>>> Failure Background:

Centos7.4 Release version:

Both the virtual machine and The VM software are NAT modes:

Note Here the default VMware DHCP service is turned on: (But the IP of its own virtual machine is manually configured)

Virtual machine IP, no gateway configured, no DNS configured as follows:

>>> resolution Process:

1. After configuring the gateway, the Ping network IP is available, but does not make the domain name resolution?

2. Then configure DNS:

The wonderful is: After the NIC configuration file is configured with DNS, it will not take effect under/etc/resolve.conf;

In this case, you need to configure DNS in the graphical interface to take effect: (pay special attention to this)

However, the server will generally turn off the graphical, then how to deal with this problem?

Restart the network;

The/etc/resolve.conf file takes effect:

>>> result output:

At this point, the virtual machine can be online:

How does "Linux" solve the problem of Linux virtual machines not connected to the extranet on VMware?