FIX #13709 TIME 0:30 can not connected onlyoffice with redHat server

src/app/contentManagement/controllers/OnlyOfficeController.php

@@ -210,7 +210,7 @@ class OnlyOfficeController
             return $response->withStatus(400)->withJson(['errors' => 'Netcat command not found', 'lang' => 'preRequisiteMissing']);
         }
 
-        $isAvailable = strpos($exec, 'succeeded!') !== false || strpos($exec, 'open') !== false;
+        $isAvailable = strpos($exec, 'succeeded!') !== false || strpos($exec, 'open') !== false || strpos($exec, 'Connected') !== false;
 
         return $response->withJson(['isAvailable' => $isAvailable]);
     }