VirtualBox guest OS accessing local server on host OS

On my Ubuntu host I have my local webserver. I installed VirtualBox and Debian as a guest.

I would like the Debian guest to be able to hit my webserver running on my Ubuntu host (for example, I just type in the browser under Debian).

How can this be done?

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7 Answers

Enable ONE network adapter. Set it to NAT and start your machine. Don't need to configure anything.

On guest machine's browser type which will show you the same content as "localhost" in the host OS.

10.0.2.2 is the "default gateway" for NAT connections and your guest OS' IP is 10.0.2.15

Of course you can set a "HOST-ONLY" or an "Internal Network" which will allow you another advanced configurations. I recommend to stay with NAT.

Enjoy

M.

10

Also a point to make when using the ip address of 10.0.2.2 is if you're using MAMP for instance add the port number :8888 so the full address reads

The easiest way of allow uninterrupted access to your VirtualBox Guest machine is to set the network device as a 'bridge' to your eth0 on to your LAN.

The Guest machine will grab a LAN IP via DHCP from your router.

1

What I found fixed the issue for me was making sure that the windows VirtualHost-Only adapter was set to the .1 address for the ip range so my virtual box host only adapter was 192.168.58.20 but the ip for the Windows adapter is 192.168.58.1

If solution by @Melvyn does not work, as an alternative you can set you network adapter to be bridged.
Go to Settings -> Network -> then change Attached to to Bridged Adapter.

You should be able to call parent by it's hostname or external IP address you can get it by going to Command prompt and typing ipconfig /all

Update If you are debugging with Visual Studio and using IIS Express.

go to C:\Users\[uesername]\Documents\IISExpress\config\applicationhost.config

find your website in <configuration>/<system.applicationHost>/<sites>/<site> (name can be deceptive try checking location on the disk in physicalPath attribute)

then add into <bindings> section new binding

<bindings> <binding protocol="http" bindingInformation="*:50766:localhost" /> <binding protocol="http" bindingInformation="*:50766:48qzr12" />
</bindings>

where bindingInformation is *:[port]:[machineName]

Hope this saves you some time.

Guests can connect to hosts, and hosts to guest, but not out of the box.

Here is a scenario. Suppose you have a host, and two guests (in my case, Windows host (HOST), and a Linux (GUEST1) and Windows (GUEST2) virtual image): Suppose further more, you run a website on one guest (in my case, , on the Windows GUEST2). I run both guests in NAT networking mode.

HOST -> GUEST2 : Use NAT port forwarding rule, on 8081. Go to networking of the virtual guest (GUEST2), and add the rule there. So, now on the host, will reach the GUEST2 website.

GUEST1 (linux) -> HOST(W10) -> GUEST2(W10) website on port 8081

Go to your other GUEST1, in my case, Linx, run netstat -rn:

Destination Gateway Genmask Flags MSS Window irtt Iface
0.0.0.0 **10.0.2.2** 0.0.0.0 UG 0 0 0 enp0s3
10.0.2.0 0.0.0.0 255.255.255.0 U 0 0 0 enp0s3
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 enp0s3
172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0 docker0

Now, your website can be reached on the gateway, . That will trigger the port NAT from HOST to GUEST2 again.

Well you can get Debian to hit your webserver, but not using localhost. You'll have to use the IP address of the Ubuntu host.

Assuming the guest OS is connected to the network, to grab the IP open up a terminal and type ifconfig. Should look something like 192.168.0.2.

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