diff --git a/Util.py b/Util.py
index 5bad141..908a1bd 100644
--- a/Util.py
+++ b/Util.py
@@ -63,15 +63,21 @@ def executeCommand(command):
     return result
 
 
-def executeCommandOn(target_machine_fqdn, strCommand):
+def executeCommandOn(target_machine_fqdn, strCommand, remote_user=None):
     """
     execute command on a local or remote machine (using ssh then)
+    :param str remote_user: 
     """
     print("comparing %s and %s" % (getHostName(), target_machine_fqdn.split('.')[0]))
     if getHostName() == target_machine_fqdn.split('.')[0]:
         return executeCommand(strCommand)
     else:
-        return executeProgram(['ssh', target_machine_fqdn, "%s" % strCommand])
+        if not remote_user is None:
+            target = '%s@%s' % (remote_user, target_machine_fqdn)
+        else:
+            target = target_machine_fqdn
+        
+        return executeProgram(['ssh', target, "%s" % strCommand])
 
 
 def getUpsStatus():