The following methods allow you to remove old and inaccurate DNS information that may result in 404 errors.
Windows® 8
To clear your DNS cache if you use Windows 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.
MacOS® 10.10
To clear your DNS cache if you use MacOS X version 10.10, perform the following steps:
Click Applications.
Click Utilities.
Click Terminal.
Run the following command:
sudo discoveryutil mdnsflushcache
If the command succeeds, the system does not return any output.
Warning:
To run this command, you must know the computer’s Admin account password.
MacOS 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.
MacOS 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:
Click Applications.
Click Utilities.
Double-click Terminal.
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.