How to flush your DNS Cache on Mac OS X?
Learn how to resolve a bad DNS entry returned by your Mac local cache due to a long TTL DNS and how to purge your Mac OS DNS cache for your specific Mac OS version, all this right from the command line.
What is DNS, and what does a flush DNS cache do?Is it safe to flush DNS cache, and is it bad?What is mDNSResponder on my Mac?
updated Dec 2021
