Re: long FQDN resolution
Matus UHLAR - fantomas <[email protected]>
| Newsgroups | gmane.network.dns.bind9.user |
|---|---|
| Message-ID | <aCYB0Fv59sCxcq8p__8607.91771426506$1747321318$gmane$org@fantomas.sk> |
On 15.05.25 14:31, DEMBLANS Mathieu wrote: >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): It's been nearly a year since I asked the same, the results are in list archive: https://lists.isc.org/pipermail/bind-users/2024-May/108537.html -- Matus UHLAR - fantomas, [email protected] ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. How does cat play with mouse? cat /dev/mouse -- 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