Flushing your DNS Cache
How to flush your DNS cache in Windows¶
Windows® 10 or 8¶
To clear your DNS cache if you use Windows 10 or 8, perform the following steps:
- On your keyboard, press Win+X to open the WinX Menu.
- Right-click Command Prompt and select Run as Administrator.
- Run the following command:
ipconfig /flushdns
If the command succeeds, the system returns the following message:
Windows IP configuration successfully flushed the DNS Resolver Cache.
Windows® 7¶
- To clear your DNS cache if you use Windows 7, perform the following steps:
- Click Start.
- Enter
cmd
in the Start menu search text box. - Right-click Command Prompt and select Run as Administrator.
- Run the following command:
ipconfig /flushdns
If the command succeeds, the system returns the following message:
Windows IP configuration successfully flushed the DNS Resolver Cache.
Windows® XP, 2000, or Vista®¶
To clear your DNS cache if you use Windows XP, 2000, or Vista®, perform the following steps: 1. Click Start. 2. On the Start menu, click Run....
Note
If you do not see the Run command in Vista, enter run in the Search bar.
- Run the following command in the Run text box:
ipconfig /flushdns
If the command succeeds, the system returns the following message:
Successfully flushed the DNS Resolver Cache.
How to flush your DNS cache for MacOS®¶
Versions 10.10.4 and above¶
To clear your DNS cache if you use MacOS X version 10.10.4 or above, perform the following steps: 1. Click Applications. 2. Click Utilities. 3. Click Terminal. 4. Run the following command:
sudo killall -HUP mDNSResponder
Warning: To run this command, you must know the computer's administrator account password.
Versions 10.10.1, 10.10.2, and 10.10.3¶
To clear your DNS cache if you use MacOS X version 10.10 through 10.10.3, perform the following steps: 1. Click Applications. 2. Click Utilities. 3. Click Terminal. 4. Run the following command:
sudo discoveryutil mdnsflushcache
Warning: To run this command, you must know the computer's administrator account password.
Versions 10.7, 10.8, and 10.9¶
To clear your DNS cache if you use MacOS X version 10.7, 10.8, or 10.9, perform the following steps:
- Click Applications.
- Click Utilities.
- Double-click Terminal.
- Run the following command:
sudo killall -HUP mDNSResponder
If the command succeeds, the system does not return any output.
Warning: To run this command, you must know the computer's administrator account password.
Versions 10.5 and 10.6¶
To clear your DNS cache if you use MacOS X version 10.5 or 10.6, perform the following steps: 1. Click Applications. 2. Click Utilities. 3. Double-click Terminal. 4. Run the following command:
sudo dscacheutil -flushcache
If the command succeeds, the system does not return any output.
Warning: To run this command, you must know the computer's administrator account password.
How to flush your DNS cache for Linux¶
By default, most linux instances don't have a DNS cache. Look up your specific distribution's instructions via google if needed.