diff --git a/apps/yang/web/src/main/webapp/WEB-INF/web.xml b/apps/yang/web/src/main/webapp/WEB-INF/web.xml
index 90f85fd..063aa5c 100644
--- a/apps/yang/web/src/main/webapp/WEB-INF/web.xml
+++ b/apps/yang/web/src/main/webapp/WEB-INF/web.xml
@@ -15,19 +15,38 @@
   ~ limitations under the License.
   -->
 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xmlns="http://java.sun.com/xml/ns/javaee"
+         xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
          xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
          id="ONOS" version="2.5">
-    <display-name>YANG LIVE COMPILER REST API v1.0</display-name>
+    <display-name>YANG Live Compiler REST API v1.0</display-name>
+
+    <security-constraint>
+        <web-resource-collection>
+            <web-resource-name>Secured</web-resource-name>
+            <url-pattern>/*</url-pattern>
+        </web-resource-collection>
+        <auth-constraint>
+            <role-name>admin</role-name>
+            <role-name>viewer</role-name>
+        </auth-constraint>
+    </security-constraint>
+
+    <security-role>
+        <role-name>admin</role-name>
+        <role-name>viewer</role-name>
+    </security-role>
+
+    <login-config>
+        <auth-method>BASIC</auth-method>
+        <realm-name>karaf</realm-name>
+    </login-config>
 
     <servlet>
         <servlet-name>JAX-RS Service</servlet-name>
-        <servlet-class>org.glassfish.jersey.servlet.ServletContainer
-        </servlet-class>
+        <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
         <init-param>
             <param-name>javax.ws.rs.Application</param-name>
-            <param-value>org.onosproject.yang.web.YangWebApplication
-            </param-value>
+            <param-value>org.onosproject.yang.web.YangWebApplication</param-value>
         </init-param>
         <init-param>
             <param-name>jersey.config.server.provider.classnames</param-name>