void dns_server_reset_features_all(DnsServer *s) {
        DnsServer *i;

        LIST_FOREACH(servers, i, s)
                dns_server_reset_features(i);
}
void dns_server_reset_features_all(DnsServer *s) {
        DnsServer *i;

        LIST_FOREACH(servers, i, s)
                dns_server_reset_features(i);
}