static uint16_t dns_port_for_feature_level(DnsServerFeatureLevel level) {
        return DNS_SERVER_FEATURE_LEVEL_IS_TLS(level) ? 853 : 53;
}
static uint16_t dns_port_for_feature_level(DnsServerFeatureLevel level) {
        return DNS_SERVER_FEATURE_LEVEL_IS_TLS(level) ? 853 : 53;
}