How to Flush DNS Cache Mac

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To flush your DNS cache on a Mac we simply need to use the following command within a Terminal window. The command may very but the one below should handle Macs running macOS Big Sur and later operating system.

As stated, open Terminal and enter the following command: sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder

You’ll need to enter your password and press Return to complete the process. It may even be advisable to restart / power cycle your Mac after this.

Conclusion

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