How does VirtualBox set up port forwarding?

We are using VirtualBox Software installation Linux After the virtual machine , Install some services in the virtual machine , Such as tomcat etc. , If you want to access the service in the virtual machine on the host , Such as visit 8080 port ,ssh Of 22 Port, etc , How should I access it , What configuration should be done ？ Installation is to set up port forwarding .

Method / step

1. First install virtualbox Software , Then create a new virtual machine , And set up Linux Of ISO Virtual machine image , Then install , Start the virtual machine after installation .

   

2. First install Enhancements , Port forwarding can only be carried out based on this enhancement .

   If Linux It's the desktop version , Will automatically run the installation ; If there is no desktop , You need to use the command to mount the image , And then do something like VBxxx.run The file of . Restart the virtual machine after successful execution .

   

3. If you want to access 22 port , First check openssh-server Installed or not , If not, you need to install it first , Before forwarding 22 port . Use different commands to install according to different systems .

   

4. And then in the virtual machine , Add port forwarding in settings , The path is a ： Set up -> The Internet -> senior -> Port forwarding , Choice of network connection mode NAT. Be careful The host port cannot be an occupied port .

   

   

5. Finally, verify whether the port in the virtual machine can be accessed in the host . By accessing the specified port in the host , Then forward to the designated forwarding in the virtual machine for access . such as ssh Connecting virtual machines ：

   $ ssh -l test -p 2222 127.0.0.1

   For example, verify whether you can access 8080 port ：

   $ telnet 127.0.0.1 8080 or nc -z 127.0.0.1 8080

matters needing attention

• Pay attention to installing enhancements first , Otherwise it won't work .

• ssh Pay attention to inspection when openssh-server Is it installed , If not, you need to install .

• The port in the host cannot be occupied .