Note: many Linux/Ubuntu distribution install sshd by default: you can see if it is running with pgrep sshd from a shell.

Of course you need to have the authorization setted (via password or, better, via an automatic authentication method). You need an active server ( sshd) on the receiving machine and a client on the sending machine. you can get some info about SSH servers e.g. You can use usual method to copy files between 2 different computer with client-server application. If you use the same folder shared on more machines you can exchange files directly copying them in this folder. (Keep in mind that can arise some problems for date/time of the files when there are different clock settings on the different virtual machines). As you put a file in a shared folder from host OS or from guest OS, is immediately visible to the other. You have the possibility to set Shared Folders too. You can have common Shared Folders on both virtual machines and use one of the directory shared as buffer to copy. You can enable drag and drop too with the same method (Click on the machine, settings, general, advanced, drag and drop: set to bidirectional ) Then you paste from the host OS to the second guest OS. You copy from guest OS in the clipboard that is shared with the host OS. You can copy few (or more) lines with copy & paste mechanism.įor this you need to share clipboard between host OS and guest OS, installing Guest Addition on both the virtual machines (probably setting bidirectional and restarting them). The answer should be complex, I hope not too much complicate, but more you read down more it is complex:

Share files virtualbox