I have used all kinds of tricks
for example
1 Edit the gateway and Ip in NAT mode, etc.
2 Configure virtual machine IP and DNS
3 Change the firewall inbound and outbound rules
4 Turn off the virtual machine firewall
systemctl stop firewalld.service
systemctl disable firewalld.service
4 Change configuration
ifcfg-ens33
cd /etc/sysconfig/network-scripts/
vi ifcfg-ens33
change network
vi /etc/sysconfig/network
添加 NETWORKING=yes
Restart the network, etc.
service network restart
The above methods are useless
See how I set the world with one foot
Instead of NAT mode, change to bridge mode
The host and virtual machine can ping each other