On Tue, Sep 07, 2021 at 10:48:57AM -0400, Matthew Pounsett <m...@conundrum.com> wrote a message of 32 lines which said:
> Yeah, you can pretty reliably get the answer in one or two steps by > requesting the NS set for the FQDN. You'll either get your answer, or > get an SOA with the name of the enclosing zone. Second lookup gets > you the NS set for the enclosing zone. Indeed (unless you find a broken resolver that fail to send the SOA). I was thinking of another issue: if the goal of the OP is to find which domain names are on the same authoritative name servers, asking the NS may not be sufficient, if a name server is known by several names (for instance, a.nic.sex and a.nic.sucks are the same machine). So, the OP may have to do a resolution of nameservers' names into IP addresses, as well. _______________________________________________ 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
