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Clear DNS info

To clear cached DNS info in various versions of Mac OS X...

Mac OS X Yosemite and later: sudo killall -HUP mDNSResponder
Mac OS X Yosemite v10.10 through v10.10.3: sudo discoveryutil mdnsflushcache
Mac OS X Mavericks, Mountain Lion and Lion: sudo killall -HUP mDNSResponder
Mac OS X Snow Leopard: sudo dscacheutil -flushcache



My latest blog post: No More Nukes?: I can make an argument both ways about whether nuclear weapons are good or bad. (posted 2025-06-23). My latest podcast: OJB's Podcast 2025-05-31 Respect the Flag.
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