Merge pull request #4515 from daniel-beck/listen-host

Listen on loopback interface by default in debug mode

war/pom.xml

@@ -40,6 +40,7 @@ THE SOFTWARE.
   <properties>
     <JENKINS_HOME>${basedir}/work</JENKINS_HOME>
     <contextPath>/jenkins</contextPath><!-- context path during test -->
+    <host>localhost</host><!-- HTTP listener host/interface -->
     <port>8080</port><!-- HTTP listener port -->
     <node.version>12.14.1</node.version>
     <yarn.version>1.21.1</yarn.version>
@@ -466,7 +467,8 @@ THE SOFTWARE.
           -->
           <reload>manual</reload>
           <httpConnector>
-              <port>${port}</port>
+            <host>${host}</host>
+            <port>${port}</port>
           </httpConnector>
           <loginServices>
             <loginService implementation="org.eclipse.jetty.security.HashLoginService">