We may need to flush DNS cache of our client when the site’s DNS has been changed.

For Linux:
1) Use su- to get root privilege or sudo with the following command:

 # /etc/rc.d/init.d/nscd restart 

or

# service nscd restart 

For Windows XP:
1) Log in as a Administrator
2) “Start->run” then run “cmd.exe”.
3) At the command prompt run

ipconfig /flushdns

For Windows Vista:
1) “Start->All Programs->Accessories”
2) Right click on the command prompt and choose run as administrator.
3) At the command prompt run

ipconfig /flushdns

Read more:

• Minimizes Thunderbird windows into the system tray
• Set up sshd server on Windows XP
• Setting up eCryptFS in Linux
• Create ISO Image on Linux
• Changing MAC Address in Linux aka. MAC Spoofing
• Windows XP SP3 换号