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Fix AdressBook errors in OSX 10.11 (fixed in OSX 10.12)

For /var/log/system.log full of errors like these ones:

kernel[0]: Sandbox: deny(1) network-outbound /private/var/run/mDNSResponder[XXXXX]: dnssd_clientstub ConnectToServer: connect()-> No of tries: 1[XXXXX]: dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:4 Err:-1 Errno:1 Operation not permitted

How to fix it?

Require SIP disabled and root access:

  1. update /System/Library/Sandbox/Profiles/ (see below)
  2. delete /Users/mems/Library/Containers/ (will be regenerated based on the updated sandbox profile)
  3. kill all processes named
  4. restart or

To update

  (or (entitlement "")
      (entitlement "")
      (entitlement ""))
  (deny network-outbound (literal "/private/var/run/mDNSResponder")))


  (or (entitlement "")
      (entitlement "")
      (entitlement "")
      (equal? (param "application_bundle_id") ""))
  (deny network-outbound (literal "/private/var/run/mDNSResponder"))) will still a bit unresponsive (spinning beach ball) when edit some contacts, but errors will stopped.

More about App Sandbox in OSX:


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@fanzila's solution works for me on El Capitan.

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