Como zerar cache DNS do MacOS X
Salve!
Para zerar o cache de dns do MacOS X de forma definitiva, segue os comandos:
OS X 12 (Sierra) and later
macbook$ sudo killall -HUP mDNSResponder;sudo killall mDNSResponderHelper;sudo dscacheutil -flushcache
OS X 11 (El Capitan) and OS X 12 (Sierra)
macbook$ sudo killall -HUP mDNSResponder
OS X 10.10 (Yosemite)
Versions 10.10.4+
macbook$ sudo dscacheutil -flushcache;sudo killall -HUP mDNSResponder
Versions 10.10.1, 10.10.2, 10.10.3
macbook$ sudo discoveryutil udnsflushcaches
Older versions
OS X 10.9 (Mavericks)
macbook$ dscacheutil -flushcache; sudo killall -HUP mDNSResponder
OS X 10.7 (Lion) and 10.8 (Mountain Lion)
macbook$ sudo killall -HUP mDNSResponder
OS X 10.5 (Leopard) and 10.6 (Snow Leopard)
macbook$ dscacheutil -flushcache
OS X 10.4 (Tiger)
macbook$ lookupd -flushcache