update admin: detect own external ip

public_html/admin/index.php

@@ -37,6 +37,11 @@ if (!$oR->isEnabled()){
 } else {
 
     $sUrl=(isset($_GET['url']) && $_GET['url']) ? $sUrl=$_GET['url'] : '';
+    $sMyIp=gethostbyname(gethostname($_SERVER['SERVER_NAME']));
+
+    if(!$sMyIp){
+        $sErrors.='<li>Ip address of current host ['.$_SERVER['SERVER_NAME'].'] was not found.</li>';
+    }
 
     // ---------- GET CONFIG DATA
 
@@ -51,7 +56,7 @@ if (!$oR->isEnabled()){
 
     // ---------- LOOP OVER ALL ENTRIES
 
-    $sMyIp=gethostbyname(gethostname());
+
     $sHtml.='
     <h2>✔️ Http head tester</h2>
     <div class="content">