sudo killall -HUP mDNSResponder; sudo killall mDNSResponderHelper; sudo dscacheutil -flushcache
macOS 清除 DNS 缓存命令October 10, 2017 · Wi1dcard | View on GitHubsudo killall -HUP mDNSResponder; sudo killall mDNSResponderHelper; sudo dscacheutil -flushcache