From dns_a_add example Code: $client = new SoapClient(null, array('location' => $soap_location, 'uri' => $soap_uri, 'trace' => 1, 'exceptions' => 1)); try { if($session_id = $client->login($username,$password)) { echo 'Logged successfull. Session ID:'.$session_id.'<br />'; } Well, I know must setup location, uri, username, and password. But ... where is username and password config in ispconfig web interface ?