Astrill Setup Manual:How to flush DNS cache on Mac OS X
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STEP 1
Let's clear old DNS cache. Open Terminal from the dock or from /Applications/Utilities/ or with Spotlight.
STEP 2
In the terminal type in dscacheutil -flushcache and then press enter. This will clear old DNS cache.
* OSX 10.5 – 10.6
sudo dscacheutil -flushcache
- OSX 10.9 – 10.8 – 10.7
sudo killall -HUP mDNSResponder
- OSX 10.10.0 – 10.10.3
sudo discoveryutil mdnsflushcache
- OSX 10.10.4
sudo killall -HUP mDNSResponder
- OSX 10.11.0
sudo killall -HUP mDNSResponder
- macOS Sierra 10.12.0
sudo killall -HUP mDNSResponder