How to flush DNS on a mac?

By jobeard
Feb 23, 2018
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  1. Well - - that depends on which version you are running.
    First launch the Terminal: Navigate to Applications -> Utilities -> Terminal.

    Yosemite: OS X 10.11
    El Capitain: OS X 10.12

    • sudo dscacheutil -flushcache ; sudo killall -HUP mDNSResponder
    High Sierria: OS X 10.13
    • sudo killall -HUP mDNSResponder;

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