How To Clear Your DNS Cache in Mac OS X

OS X 11 (El Capitan) and OS X 12 (Sierra)

macbook$ sudo killall -HUP mDNSResponder

Mac OS Versions 10.10.4+

macbook$ sudo dscacheutil -flushcache;sudo killall -HUP mDNSResponder

MacOSĀ® 10.10 (Yosemite)

To clear your DNS cache if you use MacOS X version 10.10, perform the following steps:

  • Click Applications.
  • Click Utilities.
  • Click the Terminal application.
  • Run the following command:
    sudo discoveryutil mdnsflushcache *
  • If the command succeeds, the system does not return any output.

MacOS 10.7, 10.8, and 10.9

To clear your DNS cache if you use MacOS X version 10.7, 10.8, or 10.9, perform the following steps:

  • Click Applications.
  • Click Utilities.
  • Double-click the Terminal application.
  • Run the following command:
    sudo killall -HUP mDNSResponder *

  • If the command succeeds, the system does not return any output.

MacOS 10.5 and 10.6

To clear your DNS cache if you use MacOS X version 10.5 or 10.6, perform the following steps:

  • Click Applications.
  • Click Utilities.
  • Double-click the Terminal application.
  • Run the following command:
    sudo dscacheutil -flushcache *
  • If the command was successful, the system does not return any output.

    • To run this command, you must know the computer's administrator account password.

Properties ID: 000481   Views: 188   Updated: 3 months ago
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DNS