Most operating systems and DNS clients will automatically cache IP Addresses and other DNS results, this is done in order to speed up subsequent requests to the same hostname. Sometimes bad results will be cached and therefore need to be cleared from the cache in order for you to communicate with the host correctly. All major operating systems allow you to force this process, outlined below are the common steps you will need to follow in order to flush your DNS cache.
Flushing the DNS on Windows is an easy process, outlined below is the steps that should be run if you wish to clear your DNS cache.
cmd.exe
> OK).ipconfig /flushdns
Flushing DNS on newer versions of Windows is almost as easy as the earlier versions but due to Microsoft's security additions you must run the command prompt with administrator privileges.
ipconfig /flushdns
Note: It is also possible to type in cmd
into the Windows Vista / Windows
7 start menu search field and then right click on the cmd.exe result instead of
having to navigate through the various sub menus.
Flushing the DNS cache on Windows 8 and Windows 8.1 is a very easy process. Due to system security permissions, you must ensure that you run the command prompt as an administrator user.
cmd
and the Windows search bar will appear on the right hand side with search results.Command Prompt
and click Run as administrator
.ipconfig /flushdns