} catch (final UnknownHostException e) {
            logger.debug("Unknown hostname.", e);
        }
        return "Unknown";
    }

    public void setupAdminHtmlData(final TypicalAction action, final ActionRuntime runtime) {
        runtime.registerData("developmentMode", ComponentUtil.getSearchEngineClient().isEmbedded());
        final FessConfig fessConfig = ComponentUtil.getFessConfig();