public static function getHttpdUser(Event $event)
	{
		$ps = self::runProcess($event, 'ps aux');
		preg_match_all('/^.*([a]pache|[h]ttpd|[_]www|[w]ww-data|[n]ginx)$/m', $ps, $matches);
		foreach ($matches[0] as $match) {
			$user = substr($match, 0, strpos($match, ' '));
			if ($user != 'root') {
				return $user;
			}
		}
	}