diff --git a/approot/admin-user.xml b/approot/admin-user.xml
index 14f69aa0..9ce8c4f4 100644
--- a/approot/admin-user.xml
+++ b/approot/admin-user.xml
@@ -38,17 +38,6 @@
 						${password-info class="help-block"}
 					</div>
 				</div>
-				<div class="form-group">
-					<label class="control-label col-lg-3"  for="${id:external_auth}">
-						${tr:Lms.external_auth}
-					</label>
-					<div class="checkbox col-lg-9">
-						<span class="hack">
-							${external-auth}
-							${external-auth-info class="help-block"}
-						</span>
-					</div>
-				</div>
 				${<if-demo>}
 					<div class="form-group">
 						<div class="col-lg-offset-3 col-lg-3"  for="${id:demo}">
diff --git a/conf/lms b/conf/lms
new file mode 100644
index 00000000..c53af2a1
--- /dev/null
+++ b/conf/lms
@@ -0,0 +1,9 @@
+account required        pam_unix.so     try_first_pass 
+account sufficient 	pam_localuser.so
+
+auth    required        pam_unix.so     try_first_pass
+
+password required       pam_deny.so
+
+session required        pam_unix.so     try_first_pass 
+
diff --git a/src/lms/ui/admin/UserView.cpp b/src/lms/ui/admin/UserView.cpp
index 961bd906..ea94a769 100644
--- a/src/lms/ui/admin/UserView.cpp
+++ b/src/lms/ui/admin/UserView.cpp
@@ -111,6 +111,39 @@ class UserModel : public Wt::WFormModel
 		}
 
 	private:
+		
+		Wt::WString validatePassword() const 
+		{
+			Wt::WString error;
+
+			if (Wt::asNumber(value(ExternalAuthField)))
+			{
+				if (!valueText(PasswordField).empty())
+				{
+					error = Wt::WString::tr("Lms.password_must_be_empty_for_ext");
+				}
+			}
+			else if (!valueText(PasswordField).empty())
+			{
+				if (Wt::asNumber(value(DemoField)))
+				{
+					// Demo account: password must be the same as the login name
+					if (valueText(PasswordField) != getLoginName())
+						error = Wt::WString::tr("Lms.Admin.User.demo-password-invalid");
+				}
+				else
+				{
+					// Evaluate the strength of the password for non demo accounts
+					if (!ServiceProvider<::Auth::IPasswordService>::get()->evaluatePasswordStrength(getLoginName(), valueText(PasswordField).toUTF8()))
+						error = Wt::WString::tr("Lms.password-too-weak");
+				}
+			}
+			else 
+			{
+				error = Wt::WString::tr("Lms.password-must-not-be-empty");
+			}
+			return error;
+		}
 
 		void loadData()
 		{
@@ -166,33 +199,7 @@ class UserModel : public Wt::WFormModel
 			}
 			else if (field == PasswordField)
 			{
-				if (Wt::asNumber(value(ExternalAuthField)))
-				{
-					if (!valueText(PasswordField).empty())
-					{
-						error = Wt::WString::tr("Lms.password_must_be_empty_for_ext");
-					}
-				}
-				else if (!valueText(PasswordField).empty())
-				{
-					if (Wt::asNumber(value(DemoField)))
-					{
-						// Demo account: password must be the same as the login name
-						if (valueText(PasswordField) != getLoginName())
-							error = Wt::WString::tr("Lms.Admin.User.demo-password-invalid");
-					}
-					else
-					{
-						// Evaluate the strength of the password for non demo accounts
-						if (!ServiceProvider<::Auth::IPasswordService>::get()->evaluatePasswordStrength(getLoginName(), valueText(PasswordField).toUTF8()))
-							error = Wt::WString::tr("Lms.password-too-weak");
-
-					}
-				}
-				else 
-				{
-					error = Wt::WString::tr("Lms.password-must-not-be-empty");
-				}
+				error = validatePassword();
 			}
 			else if (field == DemoField)
 			{
@@ -201,11 +208,6 @@ class UserModel : public Wt::WFormModel
 				if (Wt::asNumber(value(DemoField)) && Database::User::getDemo(LmsApp->getDbSession()))
 					error = Wt::WString::tr("Lms.Admin.User.demo-account-already-exists");
 			}
-// 			else if (field == ExternalAuthField)
-// 			{
-// 				if (!valueText(PasswordField).empty())
-// 					error = Wt::WString::tr("Lms.password_must_be_empty_for_ext");
-// 			}
 
 			if (error.empty())
 				return Wt::WFormModel::validateField(field);