Good morning Giles,
the server on dns1.ids.it allow recursion for my IP There is any other setting I have to enable to allow this level recursion? Thanks and best regards Michele Da: bind-users-boun...@lists.isc.org [mailto:bind-users-boun...@lists.isc.org] Per conto di Giles Coochey Inviato: giovedì 9 ottobre 2014 15.32 A: bind-users@lists.isc.org Oggetto: Re: Question about swupdl.adobe.com On 09/10/2014 12:24, IDS Submit wrote: Good morning, I have BIND 9.10.1 x86 and I have error on query swupdl.adobe.com ------------------------------------------------------------------ > swupdl.adobe.com Server: dns1.ids.it Address: 81.174.15.142 *** dns1.ids.it non è in grado di trovare swupdl.adobe.com: Non-existent domain ------------------------------------------------------------------ See below... ;; ANSWER SECTION: swupdl.adobe.com. 5274 IN CNAME swupdl.wip4.adobe.com. swupdl.wip4.adobe.com. 67 IN CNAME swupdl.adobe.com.edgesuite.net. swupdl.adobe.com.edgesuite.net. 794 IN CNAME a1577.d.akamai.net. a1577.d.akamai.net. 19 IN A 2.18.240.203 a1577.d.akamai.net. 19 IN A 2.18.240.210 It looks like adobe are entertaining use of a CNAME chain (a CNAME to a CNAME which points to a CNAME which points to a CNAME which eventually points to an A record). I expect that the upstream server to dns1.ids.it doesn't implement this level of recursion and as such doesn't return the full details. Thanks -- Regards, Giles Coochey, CCNP, CCNA, CCNAS NetSecSpec Ltd +44 (0) 8444 780677 +44 (0) 7584 634135 http://www.coochey.net http://www.netsecspec.co.uk gi...@coochey.net
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