Add note on cacheing to auth howto

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@958741 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/docs/manual/howto/auth.xml b/docs/manual/howto/auth.xml
index 8d2533de9300a3dd3e555b23971902783284bcb4..155dfe17c569c5dec55c7e4e80ac53699691bf19 100644 (file)
--- a/docs/manual/howto/auth.xml
+++ b/docs/manual/howto/auth.xml
@@ -56,6 +56,7 @@ module from each group.</p>
       <li><module>mod_authn_dbm</module></li>
       <li><module>mod_authn_file</module></li>
       <li><module>mod_authnz_ldap</module></li>
+      <li><module>mod_authn_socache</module></li>
     </ul>
   </li>
   <li>Authorization (see the
@@ -591,6 +592,16 @@ person in</title>
 
 </section>
 
+<section id="socache"><title>Authentication Cacheing</title>
+    <p>There may be times when authentication puts an unacceptable load
+    on a provider or on your network.  This is most likely to affect users
+    of <module>mod_authn_dbd</module> (or third-party/custom providers).
+    To deal with this, HTTPD 2.3/2.4 introduces a new cacheing provider
+    <module>mod_authn_socache</module> to cache credentials and reduce
+    the load on the origin provider(s).</p>
+    <p>This may offer a substantial performance boost to some users.</p>
+</section>
+
 <section id="moreinformation"><title>More information</title>
     <p>You should also read the documentation for
     <module>mod_auth_basic</module> and <module>mod_authz_host</module> which