Re: Reverse lookups not working when Internet connection failed.
On 11/5/22 4:32 AM, Ondřej Surý wrote: The IPv4 reverse zone is easy to scrape and stored for situations like this… just saying. Fair enough. Though if we're going to not officially sanctioned behavior, I'm inclined to create a local version of the 66.136.193.in-addr.arpa. zone that CNAMEs the (OP's) records of interest as necessary /and/ ""delegates the other records over to the real zone. -- It's a hack, but it works acceptably well in my experience. -- Grant. . . . unix || die smime.p7s Description: S/MIME Cryptographic Signature -- 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
Re: Reverse lookups not working when Internet connection failed.
The IPv4 reverse zone is easy to scrape and stored for situations like this… just saying. Ondrej -- Ondřej Surý — ISC (He/Him) My working hours and your working hours may be different. Please do not feel obligated to reply outside your normal working hours. > On 5. 11. 2022, at 0:48, Grant Taylor via bind-users > wrote: > > On 11/4/22 2:07 PM, Mark Andrews wrote: >> Any ISP that offers these delegations should be allowing their customers to >> transfer the zone that contains the CNAMEs for the customer address space by >> default. > > I've had enough trouble getting ISPs to support 2317 delegation period. I > think that asking them to allow me to do a zone transfer would have been a > hard no. > > I certainly don't think this would be allowed /by/ /default/. > > I just checked and § 5.1 of RFC 2317 mentioned having the parent do a > secondary zone transfer of the child zone. But I don't see any mention of > the child doing a secondary zone transfer of the parent zone. > > I think that would be a good idea. > > > > -- > Grant. . . . > unix || die > > -- > 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 -- 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
Re: Reverse lookups not working when Internet connection failed.
Thank you all for the replies. For what I understand after reading your replies (I might be wrong :) ), reverse lookups fail when I have no outgoing connection because some caching or or transfer is needed from 66.136.193.in-addr.arpa. , wich I don't control. This is divided in several networks, 2 of them under my control. I'll have to read more carefully your suggestions to see if I find an alternative way to achieve this only by modifying my zone files, without messing up my current setup. I'll let you know how it goes. Thanks once again. David > On 11/4/22 2:07 PM, Mark Andrews wrote: >> Any ISP that offers these delegations should be allowing their >> customers to transfer the zone that contains the CNAMEs for the >> customer address space by default. > > I've had enough trouble getting ISPs to support 2317 delegation period. > I think that asking them to allow me to do a zone transfer would have > been a hard no. > > I certainly don't think this would be allowed /by/ /default/. > > I just checked and § 5.1 of RFC 2317 mentioned having the parent do a > secondary zone transfer of the child zone. But I don't see any mention > of the child doing a secondary zone transfer of the parent zone. > > I think that would be a good idea. > > > > -- > Grant. . . . > unix || die > > -- > 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 > -- 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
