diff --git a/Core/Frameworks/Baikal/Core/Server.php b/Core/Frameworks/Baikal/Core/Server.php
index e96fe39..b90b49e 100644
--- a/Core/Frameworks/Baikal/Core/Server.php
+++ b/Core/Frameworks/Baikal/Core/Server.php
@@ -133,8 +133,8 @@
 
         if ($this->authType === 'Basic') {
             $authBackend = new \Baikal\Core\PDOBasicAuth($this->pdo, $this->authRealm);
-        } elseif ($this->authType === 'Apache') {
-            $authBackend = new \Sabre\DAV\Auth\Backend\Apache();
+       } elseif ($this->authType === 'LDAP-UserBind') {
+           $authBackend = new \Baikal\Core\LDAPUserBindAuth($this->pdo, $this->authRealm);
         } else {
             $authBackend = new \Sabre\DAV\Auth\Backend\PDO($this->pdo);
             $authBackend->setRealm($this->authRealm);
diff --git a/Core/Frameworks/Baikal/Model/Config/Standard.php b/Core/Frameworks/Baikal/Model/Config/Standard.php
index 1ef5a51..32ec217 100644
--- a/Core/Frameworks/Baikal/Model/Config/Standard.php
+++ b/Core/Frameworks/Baikal/Model/Config/Standard.php
@@ -37,6 +37,26 @@
         "card_enabled"          => true,
         "cal_enabled"           => true,
         "dav_auth_type"         => "Digest",
+        "dav_ldap_uri"              => "ldapi:///",
+        "dav_ldap_dn_template"      => "uid=%n,dc=example,dc=com",
+        "dav_ldap_displayname_attr" => "cn",
+        "dav_ldap_email_attr"       => "mail",
+        "dav_ldap_uri" => [
+            "type" => "string",
+            "comment" => "URI to LDAP Server (for ldap-userbind auth); default ldapi:///"
+        ],
+        "dav_ldap_dn_template" => [
+            "type" => "string",
+            "comment" => "User DN for bind; with replacments %n => username, %u => user part, %d => domain part of username"
+        ],
+        "dav_ldap_displayname_attr" => [
+            "type" => "string",
+            "comment" => "LDAP-attribute for displayname; default cn"
+        ],
+        "dav_ldap_email_attr" => [
+            "type" => "string",
+            "comment" => "LDAP-attribute for email; default mail"
+        ],
         "admin_passwordhash"    => "",
         "failed_access_message" => "user %u authentication failure for Baikal",
         // While not editable as will change admin & any existing user passwords,
@@ -79,7 +99,31 @@
         $oMorpho->add(new \Formal\Element\Listbox([
             "prop"    => "dav_auth_type",
             "label"   => "WebDAV authentication type",
-            "options" => ["Digest", "Basic", "Apache"],
+            "options" => ["Digest", "Basic", "LDAP-UserBind"]
+        ]));
+
+        $oMorpho->add(new \Formal\Element\Text([
+            "prop"  => "dav_ldap_uri",
+            "label" => "LDAP URI"
+        ]));
+
+        $oMorpho->add(new \Formal\Element\Text([
+            "prop"    => "dav_ldap_dn_template",
+            "label"   => "LDAP DN template",
+            "popover" => [
+                "title"   => "posible placeholder",
+                "content" => "<strong>%n</strong> - username<br /><strong>%u</strong> - user part of username , when it is an email address)<br /><strong>%d</strong> - domain part",
+            ]
+        ]));
+
+        $oMorpho->add(new \Formal\Element\Text([
+            "prop"  => "dav_ldap_displayname_attr",
+            "label" => "LDAP attribute for DisplayName"
+        ]));
+
+        $oMorpho->add(new \Formal\Element\Text([
+            "prop"  => "dav_ldap_email_attr",
+            "label" => "LDAP attribute for eMail"
         ]));
 
         $oMorpho->add(new \Formal\Element\Password([