Hi all, I think I've gotten to the bottom of this and fortunately it was misunderstanding on my part rather than an error in either piece of software. I incorrectly thought the local bind masters were serving up the DS record from within the child zone when queried, but they were of course serving up the records from the parent zone. Had I been delegating the child zone to a different physical server, this would have been more obvious to me.
I was expecting the external slave to serve up DS records for my signed zone, but it doesn't because the zone does not contain the DS records for itself and so they are not transferred via AXFR; and because the external was not authoritative for the parent zone so didn't return them from there either. Not being a recursive resolve, I now realise the external slave will never respond with any DS records for this zone. Finally, in my example zone with child delegation, the DS records for the delegated zone ARE correctly included in the AXFR of the parent and I was mistaken in thinking they were not. I am not yet replicating these to the external slave so was basing my understanding of what was happening based on the AXFR results alone. Had I been able to replicate these to the slave, I would have spotted my mistake when getting back DS records from the parent zone. Thanks for your time and apologies for my confusion! Ben On 10 February 2017 at 06:51, Martin Basti <mba...@redhat.com> wrote: > Hello, > > I'm not sure how your DNS data are structured, but usually (properly) DS > record is located in parent zone, so AXFR for subdomain.exmale.com should not > return DS record, but AXFR for example.com should return DS record of > subdomain.example.com. > > Martin > > ----- Original Message ----- > From: "Ben Roberts" <m...@benroberts.net> > To: "Tomas Krizek" <tkri...@redhat.com> > Cc: freeipa-users@redhat.com > Sent: Thursday, February 9, 2017 10:53:38 AM > Subject: Re: [Freeipa-users] bind-dyndb-ldap, AXFR and DS records > > Hi Tomas, > >> when I add a DS record to LDAP (without any DNSSEC configuration), >> it is included in my AXFR transfer. I'm using bind-dyndb-ldap-10.1. >> >> I suppose you have DNSSEC configured. Could you be affected by the >> limitations mentioned in [1]? > > Yes, dnssec is otherwise fully configured (the only bit I don't yet > have is the DS records for the "example.local" parent domain > registered upstream, but that shouldn't have any impact here. I don't > think the linked limitations apply, I'm not attempting to use the CDS > or CDNSKEY record types, and am manually specifying the DS records for > the child zone. > > This is with bind 9.11 and bind-dyndb-ldap 11.0. > > Regards, > Ben Roberts > > -- > Manage your subscription for the Freeipa-users mailing list: > https://www.redhat.com/mailman/listinfo/freeipa-users > Go to http://freeipa.org for more info on the project -- Manage your subscription for the Freeipa-users mailing list: https://www.redhat.com/mailman/listinfo/freeipa-users Go to http://freeipa.org for more info on the project
