If you have a scenario like above and you are seeking answer for it, then I am inviting you to read my article straightway.
Well, I want to first describe why my clients case work with a re-booting of his computer. A reboot is also another way of flushing the DNS. In fact, it’s one of the many reasons that so many tech support folks insist you reboot as the first step when investigating just about anything. Trust me, at that time when I offered the suggestion to him ( My Client) I had no idea of that about the DNS flushing( Yes! I am always honest to share what I don’t know :D).
Okay, now we are going to discuss about DNS Flushing. First of all, What is DNS? DNS is an acronym for the Domain Name System. I will write another article about this later as this is all about DNS Flushing. Right now just worth to know that, they are the means we all navigate the internet by; they hold the IP information for each site (e.g convert bbc.co.uk to 126.96.36.199). For website developers they are the most important because as information is updated we need DNS servers to point to the fresh content rather than the old.
In The operating System DNS is maintained and stored by the “DNS Cache”. Sometimes, for various reasons, the cache becomes corrupt or out of date, or to use a technical term: “messed up”. The symptoms vary, but the most common is that you can’t get to some web sites in your browser. At that time we need the DNS Flushing. Now I am just showing you how to do it in your computer OS. Below listed solutions are the way of DNS Flushing in different operating system.
XP And Below:
1.) Go to start->run.
2.) Type in “cmd” without the quotes.
3.) At the command prompt type “ipconfig /flushdns” again without quotes.
1.) Click on start->All Programs->Accessories
2.) Right click on the command prompt and pick run as administrator.
3.) At the command prompt type “ipconfig /flushdns” no quotes.
1.) Open a root terminal or use sudo (in ubuntu or similar systems) with the following command:
– “/etc/rc.d/init.d/nscd restart” (without quotes)
Mac OSX Leopard:
1.) Use the following command in a terminal window:
– “dscacheutil -flushcache” (without quotes)
Mac OSX 10.5.1 and before:
1.) Use the following command in a shell/terminal window:
– “lookupd -flushcache” (without quotes)
This will flush your DNS and will solve a lot of issues with your computer caching the wrong information.