| 1 | <?xml version='1.0' encoding='UTF-8'?>
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| 2 | <!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
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| 3 | <topic xml:lang="en-us" id="otherextpacks">
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| 4 | <title>Other Extension Packs</title>
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| 5 |
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| 6 | <body>
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| 7 | <p>
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| 8 | Another extension pack called VNC is available. This extension
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| 9 | pack is open source and replaces the previous integration of the
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| 10 | VNC remote access protocol. This is experimental code, and is
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| 11 | initially available in the <ph conkeyref="vbox-conkeyref-phrases/product-name"/> source code package
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| 12 | only. It is to a large portion code contributed by users, and is
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| 13 | not supported in any way by Oracle.
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| 14 | </p>
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| 15 | <p>
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| 16 | The keyboard handling is severely limited, and only the US
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| 17 | keyboard layout works. Other keyboard layouts will have at least
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| 18 | some keys which produce the wrong results, often with quite
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| 19 | surprising effects, and for layouts which have significant
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| 20 | differences to the US keyboard layout it is most likely unusable.
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| 21 | </p>
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| 22 | <p>
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| 23 | It is possible to install both the <ph conkeyref="vbox-conkeyref-phrases/vbox-ext"/>
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| 24 | and VNC, but only one VRDE module can be active at any time. The
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| 25 | following command switches to the VNC VRDE module in VNC:
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| 26 | </p>
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| 27 | <pre xml:space="preserve">VBoxManage setproperty vrdeextpack VNC</pre>
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| 28 | <p>
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| 29 | Configuring the remote access works very similarly to VRDP, see
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| 30 | <xref href="vrde.dita#vrde"/>, with some limitations. VNC does not
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| 31 | support specifying several port numbers, and the authentication is
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| 32 | done differently. VNC can only deal with password authentication,
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| 33 | and there is no option to use password hashes. This leaves no
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| 34 | other choice than having a clear-text password in the VM
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| 35 | configuration, which can be set with the following command:
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| 36 | </p>
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| 37 | <pre xml:space="preserve">VBoxManage modifyvm <varname>VM-name</varname> --vrde-property VNCPassword=secret</pre>
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| 38 | <p>
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| 39 | The user is responsible for keeping this password secret, and it
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| 40 | should be removed when a VM configuration is passed to another
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| 41 | person, for whatever purpose. Some VNC servers claim to have
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| 42 | encrypted passwords in the configuration. This is not true
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| 43 | encryption, it is only concealing the passwords, which is only as
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| 44 | secure as using clear-text passwords.
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| 45 | </p>
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| 46 | <p>
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| 47 | The following command switches back to VRDP, if installed:
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| 48 | </p>
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| 49 | <pre xml:space="preserve">VBoxManage setproperty vrdeextpack "<ph conkeyref="vbox-conkeyref-phrases/vbox-ext"/>"</pre>
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| 50 | </body>
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| 51 |
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| 52 | </topic>
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