/**
  * set and replace server remote location
  */
 public static function replaceServerParam($server, $config)
 {
     $config = \Lib\Openvpn\Util\ConfigHelper::replaceConfig('remote', $server . '.' . ServerStatus::VPN_DOMAIN, $config);
     return $config;
 }
 public function replaceConfig($config)
 {
     $config = \Lib\Openvpn\Util\ConfigHelper::replaceKey('cert', $this->getCrtKey(), $config);
     $config = \Lib\Openvpn\Util\ConfigHelper::replaceKey('key', $this->getPrvKey(), $config);
     return $config;
 }