Virtural box host-only mode problem

basic environment:
1. Host win7, has a fixed IP, for example: 10.1.18.9
2. Virtual machine centos7

requirements:
1. Virtual machines are not required to surf the Internet
2. Host and virtual machine communicate with each other

Action:
I set host-only mode,

Virtual machine ip is 192.168.56.100
Gateway: 192.168.56.1

virtualbox host-only Ethernet Adapter sets ip 192.168.56.1

question:
the host can ping the virtual machine
the virtual machine cannot ping the host

how to do it?

Virtualbox
Apr.30,2021

check the dns, subnet mask

host-only ping hosts theoretically need GATEWAY points. To access the host.

if you access the extranet, you need to add sharing to: VirtualBox Host-Only Ethernet Adapter in the
devices that actually access the extranet in the network link.

but I didn't succeed in Ubuntu myself.

the easiest way is to have two network cards, one host-only and one NAT. The simplest.

Previous: How to make different projects share the same front-end resource in visual studio?

Next: In the case of nginx, the application scenarios in which swoole_http_server exists

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b30da1-2aa8f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b30da1-2aa8f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?