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How to flush DNS cache in Linux / Windows / Mac

May 31, 2013, 07:02:21 PM

How to flush DNS cache in Linux / Windows / Mac
Flush DNS to get a new name resolution. Also flush DNS cache when you can’t access a newly registered domain name. You can simply flush your DNS cache anytime to get new entry. So, Flush your DNS cache now.

To flush DNS cache in Microsoft Windows 10 & 11:

- Start -> Run -> type cmd
- in command prompt, type ipconfig /flushdns
- Done! You Window DNS cache has just been flush.

How to clear DNS cache in Vista & Windows 7:

1. Click the Microsoft Vista Start logo in the bottom left corner of the screen
2. Click All Programs
3. Click Accessories
4. RIGHT-click on Command Prompt
5. Select Run As Administrator
6. In the command window type the following and then hit enter: ipconfig /flushdns
7. You will see the following confirmation:

Windows IP Configuration
Successfully flushed the DNS Resolver Cache.

How to clear DNS cache in Windows 8:

You need to open an administrative command prompt windows. In Windows 8, to do so, Press Win+C in combination to bring up the ‘Charms bar’. In its search box, type cmd. Then, right-click on it and choose ‘Run as administrator option. Alternatively you can also open an elevated command prompt from the WinX menu.

Next, type the following and hit enter:

ipconfig /flushdns

You should be able to see a confirmation dialog window: Windows IP Configuration. Successfully flushed the DNS Resolver Cache.

To flush the DNS cache in Linux, restart the nscd daemon:

- To restart the nscd daemon, type /etc/rc.d/init.d/nscd restart in your terminal
- Once you run the command your linux DNS cache will flush.

On newer versions of Linux you may need to use:

/etc/init.d/nscd restart

To flush the DNS cache in Mac OS X:

- type lookupd -flushcache in your terminal to flush the DNS resolver cache.
ex: bash-2.05a$ lookupd -flushcache
- Once you run the command your DNS cache (in Mac OS X) will flush.

Newer versions of MacOS X should use the following command:

type dscacheutil -flushcache