How To Clear Your DNS Cache

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---+!! How To Clear Your DNS Cache

%TOC%

---++!! Overview

Your DNS cache stores locations (IP addresses) of webservers that contain pages which you have recently viewed. If the location of the web server changes before the entry in your DNS cache updates, you will be unable to access the site.

If you encounter a large number of <a target="_blank" href="http://docs.cpanel.net/twiki/bin/vief/AllDocumentation/CpanelDocs/HTTPCodes#404%20Not%20Found">HTML 404 error codes</a>, you may need to clear your DNS cache. Once you clear your DNS cache, your computer will query nameservers for the new DNS information.

---++ How to clear your DNS cache


The following methods allow you to remove old and inaccurate DNS information that may result in 404 errors.

---+++ Windows&reg; XP, 2000, or Vista&reg;

   1 Click the _Start_ button.
   1 On the _Start_ menu, click _Run..._.
      * If you do not see the _Run_ command in Vista, enter "run" in the _Search_ bar.
   1 Type the following in the _Run_ text box: =ipconfig /flushdns=

---+++ MacOS&reg; 10.7

   1 Click _Applications_.
   1 Click _Utilities_.
   1 Double-click the *Terminal* application.
   1 Type the following: =sudo killall -HUP mDNSResponder=
      * %X% *Warning*: To run this command, you will need to know the computer's Admin account password.

---+++ MacOS&reg; 10.5 and 10.6

   1 Click _Applications_.
   1 Click _Utilities_.
   1 Double-click the *Terminal* application.
   1 Type the following: =dscacheutil -flushcache=

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Topic revision: r19 - 20 Mar 2013 - 21:17:50 - Main.LaurenceSimon