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Jorge Arredondo Dorantes CCIE

Jorge Arredondo Dorantes CCIE

Flushing your DNS Cache on any Operative System (any OS)

The following specific instructions for clearing the DNS cache on computers and servers with any OS:


Windows OS (from Windows 8 and earlier)
  1. Click the Start Menu
  2. Go to All Programs
  3. Choose Accessories and right-click Command Prompt
  4. Choose Run as Administrator
 Execute: 
ipconfig /flushdns



MAC OS X 10.4 tiger
  1. Click the Terminal icon in the dock or in Finder under Application/Utilities/Terminal
 Execute:
lookupd -flushcache







MAC OS X 10.5 and 10.6
  1. Click the Terminal icon in the dock or in Finder under Application/Utilities/Terminal
 Execute:
dscacheutil -flushcache



MAC OS X 10.7 and 10.8
  1. Click the Terminal icon in the dock or in Finder under Application/Utilities/Terminal
 Execute:
sudo killall -HUP mDNSResponder



MAC OS X 10.9 and 10.10
  1. Click the Terminal icon in the dock or in Finder under Application/Utilities/Terminal
 Execute:
dscacheutil -flushcache;sudo killall -HUP mDNSResponder



Ubuntu Linux
Open a terminal window
  1. Run the following command in the command line and hit enter
Execute:
sudo service network-manager restart



Linux (all other distributions)
  1. Open a terminal window (gnome-terminal, konsole, xterm, etc)
Execute:
sudo /etc/init.d/nscd restart
or
sudo /etc/init.d/nscd restart

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