In article <mailman.2375.1438232213.26362.bind-us...@lists.isc.org>, Mark Andrews <ma...@isc.org> wrote:
> In message <23dee83f-7476-432b-92b9-f8d34d617...@nau.edu>, Mathew Ian Eis > writes: > > Howdy BIND, > > > > Weve been troubleshooting an issue with iOS print discovery using DNS-SD > > for the last several weeks. We made a little bit of a breakthrough this > > evening when we observed in a packet trace that the response case was > > fully lowercase, regardless of the query case. It seems iOS is doing some > > kind of case sensitive comparison between the query and the response, > > causing DNS-SD to fail when they dont match. > > Then iOS (or the application) is broken. Domain names should always > be compared case insensitively. Please report a bug to the app > vendor and / or Apple. Isn't this the DNS 0x20 security enhancement? Clients send a random mix of case, and check that the response matches, to protect against spoofed responses. https://tools.ietf.org/html/draft-vixie-dnsext-dns0x20-00 -- Barry Margolin Arlington, MA _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
