Flush DNS on my Computer

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Flush DNS on my Computer


Most operating systems and DNS clients will automatically cache IP Addresses and other DNS results in order to speed up site loading times. When a DNS record is changed, old DNS records will still be cached. These usually clear by themselves in time, but it is also possible to manually clear them so that a fresh lookup is performed. The following steps will allow you to flush the DNS cache for your respective operating system:

Windows
Step 1 - Click the Start button and navigate to the Command Prompt.

Step 2 - Right Click on the command prompt application and choose 'Run as Administrator'.

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Step 3 - Type in the command below, then press Enter:

ipconfig /flushdns


Mac
Step 1 -
Open your Applications folder.

Step 2 - Open Utilities.

Step 3 - Double-click on Terminal.

Step 4 - Enter the relevant code from the options below:


Mountain Lion, Lion and above

If you are running Mac OS X 10.7 or 10.8, you need to run the following command:

sudo killall -HUP mDNSResponder

Snow Leopard
If you are running Mac OS X 10.6, you need to run the following command:

dscacheutil -flushcache

Leopard and below
If you are running Mac OS X 10.5.1 or below, you need to run the following command:

lookupd -flushcache



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