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=== Computers/Emulators/Intel_x86_Architecture/VirtualBox ===
* https://en.wikipedia.org/wiki/VirtualBox

==== communication with a (local) virtual machine ====

If the host is connected to its LAN through wifi, the network interface(s) of a local virtual machine cannot be set to ''bridged mode'' and hence cannot acquire its own IP address on the LAN.

The virtual machine usually can be ssh-ed into on a unusual port like 2222:

ssh into a local virtual machine:
<pre>
$ ssh -p 2222 localhost
</pre>

rsync (via ssh) into a local virtual machine:
<pre>
$ env RSYNC_RSH='ssh -p 2222' rsync -vaz diary localhost:diary_
</pre>

emacs/tramp/dired (http://www.gnu.org/software/tramp/) with a local virtual machine:

this should "ssh -p 2222 localhost", but seems to ignore "-p 2222":
<pre>
/ssh:localhost#2222:
</pre>

these variations of the above work:
<pre>
/sshx:localhost#2222:
/scpx:localhost#2222:
</pre>