Flush DNS Cache

Almost all well-known Operating Systems like Microsoft Windows, Apple MAC OS and many Linux clients automatically cache IP Address and DNS as well. It’s normally called ARP and it help PC to look in this table to quickly get same host information related to it. Sometimes, PC give you old saved results related to IP Address and Host and you need to clear these records from cache to update the new records.

I am going to write about Microsoft (Windows 98 to XP, Windows Vista, Windows 7, Windows 8 or Windows 8.1 and obviously Windows 10), MAC OS and Linux as well. Here is the way to clear DNS cache, called DNS flush;

 Microsoft Windows 98/NT/2000/XP Flush DNS

 Microsoft Windows 98, NT, Millennium, 2000 and XP has almost same process to flush DNS cache, here are easy way to accomplish this;

  1. Open Command Prompt : Start > Run > CMD > Press OK
  2. Type in Command > ipconfig /flushdns > Press Enter

 Windows Vista / Windows 7 Flush DNS

Newer versions of Microsoft Windows are easier than previous ones but Microsoft add UAC (User Access Control), a security, to New Operating Systems and it required Administrative Privileges to run the system related commands and task.

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