Petr Menšík <pemen...@redhat.com> wrote: > Because BIND uses DNS protocol only and not any dbus or former lwres > protocol, you can count only querying -t ANY for single name as > something similar.
ANY queries don't necessarily give you all the records :-) In situations where a DNS client wants to do multiple queries at once, it can either send a load of UDP queries then wait for the answers, or if it has a TCP connection open, write all the queries in one go, then read the answers. There's not really much need for fancy features to support multiple questions when you can do hundreds of concurrent queries with one or two sockets. Happy Eyeballs version 2 requires concurrent DNS queries https://tools.ietf.org/html/rfc8305#section-3 I like to use `adns` for bulk concurrent queries http://www.chiark.greenend.org.uk/~ian/adns/ Much newer is getdns which has a more JSON-friendly design. https://getdnsapi.net/ Tony. -- f.anthony.n.finch <d...@dotat.at> https://dotat.at/ Biscay: West or northwest 5 or 6, becoming variable 2 to 4 later. Moderate or rough, becoming moderate. Rain at first. Good, occasionally moderate.
_______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users