return !fessConfig.isLdapAuthValidation();
            }
            try {
                final Hashtable<String, String> env = createAdminEnv();
                try (DirContextHolder holder = getDirContext(() -> env)) {
                    final DirContext context = holder.get();
                    if (logger.isDebugEnabled()) {
                        logger.debug("Logged in as Bind DN. {}", context);
                    }