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<html><body>
<h1>Microsoft Hyper-V hypervisor driver</h1>
<ul id="toc"></ul>
<p>
The libvirt Microsoft Hyper-V driver can manage Hyper-V 2008 R2.
</p>
<h2><a name="project">Project Links</a></h2>
<ul>
<li>
The <a href="http://www.microsoft.com/hyper-v-server/">Microsoft Hyper-V</a>
hypervisor
</li>
</ul>
<h2><a name="uri">Connections to the Microsoft Hyper-V driver</a></h2>
<p>
Some example remote connection URIs for the driver are:
</p>
<pre>
hyperv://example-hyperv.com (over HTTPS)
hyperv://example-hyperv.com/?transport=http (over HTTP)
</pre>
<p>
<strong>Note</strong>: In contrast to other drivers, the Hyper-V driver
is a client-side-only driver. It connects to the Hyper-V server using
WS-Management over HTTP(S). Therefore, the
<a href="remote.html">remote transport mechanism</a> provided by the
remote driver and libvirtd will not work, and you cannot use URIs like
<code>hyperv+ssh://example.com</code>.
</p>
<h3><a name="uriformat">URI Format</a></h3>
<p>
URIs have this general form (<code>[...]</code> marks an optional part).
</p>
<pre>
hyperv://[username@]hostname[:port]/[?extraparameters]
</pre>
<p>
The default HTTPS ports is 5986. If the port parameter is given, it
overrides the default port.
</p>
<h4><a name="extraparams">Extra parameters</a></h4>
<p>
Extra parameters can be added to a URI as part of the query string
(the part following <code>?</code>). A single parameter is formed by a
<code>name=value</code> pair. Multiple parameters are separated by
<code>&</code>.
</p>
<pre>
?transport=http
</pre>
<p>
The driver understands the extra parameters shown below.
</p>
<table class="top_table">
<tr>
<th>Name</th>
<th>Values</th>
<th>Meaning</th>
</tr>
<tr>
<td>
<code>transport</code>
</td>
<td>
<code>http</code> or <code>https</code>
</td>
<td>
Overrides the default HTTPS transport. The default HTTP port
is 5985.
</td>
</tr>
</table>
<h3><a name="auth">Authentication</a></h3>
<p>
In order to perform any useful operation the driver needs to log into
the Hyper-V server. Therefore, only <code>virConnectOpenAuth</code> can
be used to connect to an Hyper-V server, <code>virConnectOpen</code> and
<code>virConnectOpenReadOnly</code> don't work.
To log into an Hyper-V server the driver will request credentials using
the callback passed to the <code>virConnectOpenAuth</code> function.
The driver passes the hostname as challenge parameter to the callback.
</p>
<p>
<strong>Note</strong>: Currently only <code>Basic</code> authentication
is supported by libvirt. This method is disabled by default on the
Hyper-V server and can be enabled via the WinRM commandline tool.
</p>
<pre>
winrm set winrm/config/service/auth @{Basic="true"}
</pre>
<p>
To allow <code>Basic</code> authentication with HTTP transport WinRM
needs to allow unencrypted communication. This can be enabled via the
WinRM commandline tool. However, this is not the recommended
communication mode.
</p>
<pre>
winrm set winrm/config/service @{AllowUnencrypted="true"}
</pre>
</body></html>
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