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        <title>Replace OpenVPN Access Server VPN Server and CA Certificates</title>
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            <h1>Replace OpenVPN Access Server VPN Server and CA Certificates</h1>
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          <p>NOTE: Following this procedure will invalidate any client certificates currently in use with the OpenVPN Access Server. These clients will need to re-download their certificates from the OpenVPN Access Server to get connected using the updated certificates</p>

<h2>Prerequisites</h2>

<ul>
	<li class="noCheckbox">A XCA PKI database <a href="https://youtu.be/ezzj3x207lQ" target="_blank">https://youtu.be/ezzj3x207lQ</a></li>
</ul>

<h2>Create OpenVPN Server Certificate</h2>

<ol>
	<li>Launch XCA</li>
	<li>Open the PKI database if it is not already (File &gt; Open DataBase), enter password</li>
	<li>Click on the Certificates tab, right click on your Intermediate CA certificate</li>
	<li>Select New</li>
	<li>On the Source tab, make sure Use this Certificate for signing is selected</li>
	<li>Verify your Intermediate CA certificate is selected from the drop down</li>
	<li>Click the Subject tab</li>
	<li>Complete the Distinguished Name section
	<p>internalName: OpenVPN CA<br />
	countryName: US<br />
	stateOrProvinceName: Virginia<br />
	localityName: Northern<br />
	organizationName: i12bretro<br />
	organizationUnitName: i12bretro Certificate Authority<br />
	commonName: OpenVPN CA</p>
	</li>
	<li>Click the Generate a New Key button</li>
	<li>Enter a name and set the key size to at least 2048</li>
	<li>Click Create</li>
	<li>Click on the Extensions tab</li>
	<li>Select Certificate Authority from the type list</li>
	<li>Update the validity dates to fit your needs</li>
	<li>Click the Key Usage tab</li>
	<li>Under Key Usage select Digital Signature, Key Agreement and Certificate Sign</li>
	<li>Click OK to create the certificate</li>
	<li>Click on the Certificates tab, right click on your Intermediate CA certificate again</li>
	<li>Select New</li>
	<li>On the Source tab, make sure Use this Certificate for signing is selected</li>
	<li>Verify your Intermediate CA certificate is selected from the drop down</li>
	<li>Click the Subject tab</li>
	<li>Complete the Distinguished Name section
	<p>internalName: OpenVPN Server<br />
	countryName: US<br />
	stateOrProvinceName: Virginia<br />
	localityName: Northern<br />
	organizationName: i12bretro<br />
	organizationUnitName: i12bretro Certificate Authority<br />
	commonName: vpn.i12bretro.local</p>
	</li>
	<li>Click the Generate a New Key button</li>
	<li>Enter a name and set the key size to at least 2048</li>
	<li>Click Create</li>
	<li>Click on the Extensions tab</li>
	<li>Set the Type dropdown to End Endity</li>
	<li>Check the box next to Subject Key Identifier</li>
	<li>Update the validity dates to fit your needs</li>
	<li>Click the Key Usage tab</li>
	<li>Under Key Usage select Digital Signature and Key Encipherment</li>
	<li>Under Extended Key Usage select TLS Web Server Authentication</li>
	<li>Click the Netscape tab</li>
	<li>Deselect all options and clear the Netscape Comment field</li>
	<li>Click OK to create the certificate</li>
</ol>

<h2>Updating OpenVPN Access Server With New Certificates</h2>

<ol>
	<li>Open a web browser and navigate to phpMyAdmin</li>
	<li>Expand as &gt; as_certs &gt; certificates</li>
	<li>Check the boxes next to OpenVPN CA and OpenVPN Server &gt; Select edit below the table</li>
	<li>In XCA, click on the Certificates tab &gt; right click on the OpenVPN CA &gt; Export &gt; Clipboard</li>
	<li>Back in phpMyAdmin, clear the cert field for the OpenVPN CA and paste the contents of the clipboard</li>
	<li>In XCA, click on the Private Keys tab &gt; right click on the OpenVPN CA &gt; Export &gt; Clipboard</li>
	<li>Make sure the format dropdown is set to PKCS #8 &gt; Click OK</li>
	<li>Back in phpMyAdmin, clear the priv_key field for the OpenVPN CA and paste the contents of the clipboard</li>
	<li>In XCA, click on the Certificates tab &gt; right click on the OpenVPN Server &gt; Export &gt; Clipboard</li>
	<li>Back in phpMyAdmin, clear the cert field for the OpenVPN Server and paste the contents of the clipboard</li>
	<li>In XCA, click on the Private Keys tab &gt; right click on the OpenVPN Server &gt; Export &gt; Clipboard</li>
	<li>Make sure the format dropdown is set to PKCS #8 &gt; Click OK</li>
	<li>Back in phpMyAdmin, clear the priv_key field for the OpenVPN Server and paste the contents of the clipboard</li>
	<li>Log into the OpenVPN Access Server admin interface https://DNSorIP:943/admin</li>
	<li>Click the Stop VPN services button</li>
	<li>Click the Confirm Stop button</li>
	<li>Click the Start VPN services button</li>
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