| 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>Another extension pack called VNC is available. This extension pack is open source and replaces the previous
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| 8 | integration of the VNC remote access protocol. This is experimental code, and is initially available in the <ph
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| 9 | conkeyref="vbox-conkeyref-phrases/product-name"/> source code package only. It is to a large portion code
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| 10 | contributed by users, and is not supported in any way by Oracle. </p>
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| 11 | <p>The keyboard handling is severely limited, and only the US keyboard layout works. Other keyboard layouts will
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| 12 | have at least some keys which produce the wrong results, often with quite surprising effects, and for layouts
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| 13 | which have significant differences to the US keyboard layout it is most likely unusable. </p>
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| 14 | <p>It is possible to install both the <ph conkeyref="vbox-conkeyref-phrases/vbox-ext"/> and VNC, but only one VRDE
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| 15 | module can be active at any time. The following command switches to the VNC VRDE module in VNC: </p>
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| 16 | <pre xml:space="preserve">VBoxManage setproperty vrdeextpack VNC</pre>
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| 17 | <p>Configuring the remote access works very similarly to VRDP, see <xref href="vrde.dita#vrde"/>, with some
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| 18 | limitations. VNC does not support specifying several port numbers, and the authentication is done differently. VNC
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| 19 | can only deal with password authentication, and there is no option to use password hashes. This leaves no other
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| 20 | choice than having a clear-text password in the VM configuration, which can be set with the following command: </p>
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| 21 | <pre xml:space="preserve">VBoxManage modifyvm <varname>VM-name</varname> --vrde-property VNCPassword=secret</pre>
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| 22 | <p>The user is responsible for keeping this password secret, and it should be removed when a VM configuration is
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| 23 | passed to another person, for whatever purpose. Some VNC servers claim to have encrypted passwords in the
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| 24 | configuration. This is not true encryption, it is only concealing the passwords, which is only as secure as using
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| 25 | clear-text passwords. </p>
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| 26 | <p>The following command switches back to VRDP, if installed: </p>
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| 27 | <pre xml:space="preserve">VBoxManage setproperty vrdeextpack "<ph conkeyref="vbox-conkeyref-phrases/vbox-ext"/>"</pre>
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| 28 | </body>
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| 29 |
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| 30 | </topic>
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