On 14 Jun 2016, at 15:13, Michael Nickerson <darkshado...@me.com> wrote: > >> On Jun 14, 2016, at 5:11 AM, Rick Mann <rm...@latencyzero.com> wrote: >> >> Just now Safari stopped being able to load facbook.com. So did Chrome. Both >> reported DNS failures. >> >> But dig on the command line, and curl, both succeed. >> >> How are these two domains different? > > Safari and other apps are using the frameworks to resolve DNS (which, I > believe, is ultimately done via mDNSResponder, but I could be wrong on that > one),
You’re correct. It does use mDNSResponder (you can actually see the code on Apple’s Open Source site). > while command line programs are using lower level calls that query the DNS > server directly. dig does its own DNS protocol over ordinary sockets. curl uses c-ares, an open source DNS library. Kind regards, Alastair. -- http://alastairs-place.net _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
