Updating dashboard to use ip rather than ifconfig

includes/dashboard.php

@@ -54,14 +54,14 @@ function DisplayDashboard(){
   if( isset($_POST['ifdown_wlan0']) ) {
     exec( 'ifconfig wlan0 | grep -i running | wc -l',$test );
     if($test[0] == 1) {
-      exec( 'sudo ifdown wlan0',$return );
+      exec( 'sudo ip link set wlan0 down',$return );
     } else {
       echo 'Interface already down';
     }
   } elseif( isset($_POST['ifup_wlan0']) ) {
     exec( 'ifconfig wlan0 | grep -i running | wc -l',$test );
     if($test[0] == 0) {
-      exec( 'sudo ifup wlan0',$return );
+      exec( 'sudo ip link set wlan0 up',$return );
     } else {
       echo 'Interface already up';
     }