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iOS: Unable to resolve unicast DNS names that end in .local

Symptoms

iOS devices may be unable to resolve unicast DNS names that end with a ".local" suffix, affecting access to internal corporate networks that use an internal, top-level domain name, such as "mydomain.local".

Resolution

Changing your private network (if possible) to use a domain-name suffix other than ".local" will resolve this issue. When planning for internal corporate network naming, instead of ".local", use a domain suffix such as the following:

  • .private
  • .intranet
  • .internal
  • .lan

Bonjour's Multicast Domain Name Service (mDNS) uses the ".local" suffix to identify Bonjour-accessible devices. Avoiding use of a ".local" suffix when planning internal corporate networks is strongly recommended.

This document will be updated as more information becomes available.
Last Modified: Sep 20, 2012
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  • Last Modified: Sep 20, 2012
  • Article: TS3389
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