protected function checkServerConfiguration()
    {
        $pico = $this->picoAuth->getPico();

        // Pico config.yml file
        $configDir = $pico->getBaseUrl() . basename($pico->getConfigDir());
        $configFile = $configDir . "/config.yml";

        // index.md file
        $contentDir = $pico->getBaseUrl() . basename($pico->getConfig('content_dir'));
        $indexFile = $contentDir . "/index" . $pico->getConfig('content_ext');

        $urls = array(
            'dir_listing' => $configDir,
            'config_file' => $configFile,
            'content_file' => $indexFile
        );

        $this->httpsTest();
        $this->webRootDirsTest();
        $this->picoAuth->addOutput("installer_urltest", $urls);
    }