Before you start:

• Close any web browser windows you have open.
• Close any email applications.

How to Flush DNS in Windows

1. Click Start > Run…
2. Enter ipconfig /flushdns
3. Click OK to execute.

Microsoft.com “/flushdns : Flushes and resets the contents of the DNS client resolver cache. During DNS troubleshooting, you can use this procedure to discard negative cache entries from the cache, as well as any other entries that have been added dynamically.”

How to Flush DNS in Mac OS X

Tip: On Mac? Try DNS Flusher. A simple, and free DNS tool for Mac OS X 10.4 and later. Download DNS Flusher 1.1

Mac OS X Leopard

1. Open Terminal
2. Enter dscacheutil -flushcache

Mac OSX Tiger & later

1. Open Terminal
2. Enter lookupd -flushcache

How to Flush DNS in Ubuntu

1. Open Terminal
2. Enter sudo /etc/init.d/networking restart

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Related posts:

• How do I perform a tracert or traceroute in Mac OS X?
• How to edit hosts file in Mac & Windows
• Edit Hosts File on Mac
• Troubleshooting your website
• Troubleshooting Windows Live Mail

Tags: dns, flush, hosting, mac, network, os x, osx, troubleshooting, ubuntu, website, windows

This entry was posted on Sunday, May 10th, 2009 at 3:44 pm and is filed under Web Hosting. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.