Simple command to Flush DNS cache. Compatiable with 10.6 through to 10.14. Takes no arguments but asks for system password to run task as an admin user.
Triggered with keyword
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Update 20/1/2019: Support for macOS Mojave 10.14
Update 20/4/2018: Updated icon
Update 24/1/2018: Support for macOS High Sierra 10.13
Update 12/1/2017: Support for macOS Sierra 10.12