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. > I noticed change 3645, but my reading of the related article suggests > that the change was actually intended to preserve the case in a query > response rather than force it to lowercase. It preserves the case of the of the owner names of the records in the answers as received. > My reading of that article suggests the RFC compliant behavior is to > preserve the case in the response, is this correct? > https://deepthought.isc.org/article/AA-01113/0/Case-Insensitive-Response-C > ompression-May-Cause-Problems-With-Mixed-Case-Data-and-Non-Conforming-Clie > nts.html > > Were currently running BIND 9.9.7 (it is likely this issue was introduced > when we updated from 9.9.4 a while back), so Im wondering why I am > running into this. Is there something that I need to turn on to preserve > the case in the response, or, alternatively, is there something that we > have have inadvertently changed that would cause BIND to force the > response to lowercase? > > Thanks in advance, > > Mathew Eis > Northern Arizona University > Information Technology Services > mathew....@nau.edu<mailto:mathew....@nau.edu> -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org _______________________________________________ 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
