long FQDN resolution
DEMBLANS Mathieu <[email protected]>
| Newsgroups | gmane.network.dns.bind9.user |
|---|---|
| Message-ID | <dd4b4c562f9446c29512948697b9d5fb__27802.455522918$1747319528$gmane$org@mipih.fr> |
Hello, I have a question about mecanism for requests of long subdomains FQDN. Our DNS, which is in recursive configuration, split long fqdn request with subdomains requests like : Original request from the client to our recursive DNS : A a.b.c.d.example.com Requests done by our DNS to the domain example.com NS: A _.c.d.example.com A _b.c.d.example.com A a.b.c.d.example.com Is it a normal behaviour ? This is only done for 4 levels domains (a.b.example.com for example) and more, not < normal > fqdn (ex : www.example.com). What part of the configuration manage this mecanism ? Is this really usefull ? It is problematic for DNSBL requests because it generate a lot of useless requests and this kind of service look at the number of requests done (usage policy): [cid:[email protected]] -- 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 [email protected] https://lists.isc.org/mailman/listinfo/bind-users
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