How to flush the DNS cache on Mac, Linux or Windows

If websites are not appearing correctly, connections time out or if you cannot find a computer on a network, you may need to flush the DNS cache.  Here’s how to do it-

Microsoft Windows

– Go to a command prompt as an administrator
– Type ipconfig /flushdns

Linux

– Go to the terminal
-Type /etc/rc.d/init.d/nscd

Mac OS X Mountain Lion or Lion:-

– Go to the terminal
_ Type sudo killall -HUP mDNSResponder

Mac OS x

– Go to the terminal
– Type sudo dscacheutil -flushcache

iPad

Reboot it to flush the cache or turn Airplane Mode on and off.

Ultimately resetting the network settings on the iPad will flush the DNS cache.
To reset the Network Settings-

  • Tap the Settings icon
  • Tap General
  • At the bottom of the column tap Reset
  • Choose Reset Network Settings

iPhones and Androids can be repbooted (powered down) to flush the DNS cashe

About TCAT Shelbyville IT Department

The Tennessee College of Applied Technology - is one of 46 institutions in the Tennessee Board of Regents System, the seventh largest system of higher education in the nation. This system comprises six universities, fourteen community colleges, and twenty-six Applied Technology Colleges.
This entry was posted in Apple, Computers, Education, Home Networking, Information Technology, Linux, network, Networking, Technology, Ubuntu, Windows and tagged , , , , , . Bookmark the permalink.

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