/**
  * Set the host name
  *
  * @param string $host Hostname
  * @return void
  */
 protected static function _setHost($host)
 {
     self::$host = $host;
     if (strpos(self::$host, ':') !== false) {
         self::$host = substr(self::$host, 0, strpos(self::$host, ':'));
     }
 }