In article <[email protected]>, Mark Andrews <[email protected]> wrote:
> In message <[email protected]>, 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 [email protected] https://lists.isc.org/mailman/listinfo/bind-users
