Articles tagged with mdnsresponder

1. El Capitan Leads to More DNS Woes

   Posted on October 06, 2015 in System Administration

   For whatever reason, Apple really likes messing with how I use DNS.

   I've written many, many, many times about having to modify OS X's DNS functionality to append search domains when a hostname includes a dot. Every single time I upgrade, this change is broken.

   Previously, the workaround had been …

2. Goodbye, discoveryd. Hello again, mDNSResponder.

   Posted on July 07, 2015 in System Administration

   Great!

   Once again, Apple has made a change in how DNS is handled in Mac OS X. Originally, Yosemite (10.10) had replaced mDNSResponder with discoveryd. This meant that all of those who had made a change to force mDNSResponder to always append search domains to DNS lookups had to …

3. OS X Not Appending Search Domains - Yosemite Edition

   Posted on November 20, 2014 in System Administration

   It seems this problem has resurfaced again with the new version of Mac OS X. More specifically, this problem seems to affect appending search domains when the hostname contains a dot. In Yosemite (10.10), mDNSResponder has been replaced with discoveryd. Fortunately, all we need to do here is add …

4. Mac OS X Not Using Search Domains

   Posted on May 04, 2014 in System Administration

   Every time I restart my OS X Mountain Lion (10.9) laptop, it stops using the DNS search domains I've added via the Network preferences pane. I have found that restarting mDNSResponder fixes this issue. There are two ways to do this.

   The first is a simple restart by sending …