Flush DNS – How to clear cached DNS on computer and Wifi

Kaz Wolfe

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For each operating system, the way to clear DNS cache will be different

1. For windows, vista 7, window 10,...etc
Open Windows command prompt by selecting Start menu => All Programs => Accessories. Right click on Command Prompt and select Run as Administrator or press Window + R button Type CMD then Enter
In the window that appears, type the following command and enter. ipconfig /flushdns

2. Windows 98/NT/2000/XP Flush DNS
Close your applications (browser or email).
Open the Windows command prompt by selecting the Start menu and typing cmd in the search box, then pressing the enter key.
In the window that appears, type the following command and enter. ipconfig /flushdns

3. Windows 8 / Windows 8.1 Flush DNS
Due to the system security policy of this operating system you need to run cmd as the highest administrator and follow the steps given below to clear the DNS cache.

Press the Windows + X key combination and select Command Prompt (Admin) from the Power User menu.

Type the command ipconfig/flushdns and enter

4. Mac Flush DNS
* If you are using Mac OS X Leopard

Open command terminal.
Run the command dscacheutil -flushcache

*If you are using Mac OS X 10.5.1

Open command terminal.
Run command lookupd -flushcache

* If you are using Mountain Lion or Lion

Open command terminal
Run the command sudo killall -HUP mDNSResponder

5. Linux Flush DNS
Open command terminal.
Run the command /etc/init.d/nscd restart

6. Also to be more sure, you should restart wifi and on the PC add some other operations, specifically in cmd you add the commands:
Code:
ipconfig/release
ipconfig/flushdns
ipconfig/renew
OK, that's it, you can access it normally without worrying about cache and DNS anymore.
 

Dopani

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Yes I have this issue in the past and I clear dns cache on my PC and everything was very fine. I don't see this any more today, maybe DNS service from some providers like Cloudflare updated very fast and we will never see dns iusse any more.
 
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