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<title>derby.authentication.provider</title>
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<h1 class="topictitle1">derby.authentication.provider</h1>


<div>
<div class="section"><h4 class="sectiontitle">Function</h4> <p>Specifies the authentication provider
for <span>Derby</span> user
authentication.</p>

<p>Legal values include:</p>

<ul>
<li>LDAP   <p>An external LDAP directory service.</p>
</li>

<li>A complete Java class name   <p>A user-defined class that provides user
authentication.</p>
</li>

<li>BUILTIN   <p><span>Derby</span>'s
simple internal user authentication repository.</p>

<div class="important"><span class="importanttitle">Important: </span><span>Derby</span>'s
BUILTIN authentication mechanism is suitable only for development and testing
purposes. It is strongly recommended that production systems rely on LDAP or a
user-defined class for authentication. It is also strongly recommended that
production systems protect network connections with SSL/TLS.</div>
</li>

</ul>

<p>When using an external authentication service provider (LDAP), you must also
set:</p>

<ul>
<li><em><a href="rrefproper25581.html#rrefproper25581">derby.authentication.server</a></em></li>

</ul>

<p>When using LDAP, you can set other LDAP-specific properties. See also:</p>

<ul>
<li><em><a href="rrefproperauthdn.html#rrefproperauthdn">derby.authentication.ldap.searchAuthDN</a></em></li>

<li><em><a href="rrefproperauthpw.html#rrefproperauthpw">derby.authentication.ldap.searchAuthPW</a></em></li>

<li><em><a href="rrefproper37341.html#rrefproper37341">derby.authentication.ldap.searchFilter</a></em></li>

<li><em><a href="rrefproper26978.html#rrefproper26978">derby.authentication.ldap.searchBase</a></em></li>

</ul>

<p>Alternatively, you can write your own class to provide a different external
authentication service. This class must implement the public interface
<em>org.apache.derby.authentication.UserAuthenticator</em> and throw exceptions
of the type <em>java.sql.SQLException</em> where appropriate. Using a user-defined
class makes <span>Derby</span> adaptable
to various naming and directory services. For example, the class could allow
<span>Derby</span> to hook up to an
existing user authentication service that uses any of the standard directory and
naming service providers to JNDI.</p>

<p>To enable any <span>Derby</span> user
authentication, you must set the
<em><a href="rrefproper27467.html#rrefproper27467">derby.connection.requireAuthentication</a></em>
property to true.</p>

<p>For more information about user authentication, see the <span><em>Java DB Developer's Guide</em></span>.</p>
</div>

<div class="section"><h4 class="sectiontitle">Syntax</h4>
<pre><strong>derby.authentication.provider={ LDAP | BUILTIN | <strong><em>classProviderName</em></strong> }</strong></pre>

</div>

<div class="section"><h4 class="sectiontitle">Default</h4> <p>BUILTIN</p>
 </div>

<div class="example"><h4 class="sectiontitle">Example</h4> <pre><strong>-- system-wide property
derby.authentication.provider=LDAP
-- database-wide property
CALL SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY(
    'derby.authentication.provider',
    'BUILTIN')</strong></pre>
 </div>

<div class="section"><h4 class="sectiontitle">Dynamic or static</h4>
<p>Static. For system-wide properties, you must reboot
<span>Derby</span> for the change to take
effect. For database-wide properties, you must reboot the database for the
change to take effect.</p>

</div>

</div>

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<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="crefproper22250.html" title="The Derby properties are used for configuring the system and database, as well as for diagnostics such as logging statements, and monitoring and tracing locks.">Derby properties</a></div>
</div>
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