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How To Clear Dns Cache

How To Clear Dns Cache

This video explains how to clear out your Dns Cache on your computer. The presenter explains what DNS is for and what a Cache is for. He explains that it is sometimes necessary to clear out, or delete, old addresses that get stored in the DNS Cache, so that your computer has the most up-to-date addresses.

So, now I'm going to show you how to flush your Dns Cache. Now, first of all, what is Dns and what is a Cache? Well, Dns stands for "domain name service", and put simply, it allows you to translate a friendly computer name, such as www dot bbc dot co dot uk into the internet address that the computers are known by. Think of it like a big telephone directory.

We say to Dns, "I want to go to google dot com, for example, and it will translate that into the numbers that our computer needs to get there. Now, the Cache bit. We often visit the same websites, and rather than repeatedly asking Dns, which is a computer somewhere on the internet, for the same address all the time, we store this information locally.

Now, most of the time, that's absolutely fine, but sometimes, just like humans, we change addresses and we change telephone numbers. In circumstances like that, we might need to flush our Dns Cache. So, I'll show you a couple of ways that you can do that.

So, what we do is click on the start menu. Now, how I do this is in the bottom, I'll type in cmd. This brings up little program, cmd, up here.

CMD is short for "Command Prompt", and very simply, type it exactly what you see me typing here. ipconfig, all one word, /flushdns, and then press return. As you'll see here, it says that it successfully flushed the DNS Resolver Cache, and that means that it's deleted all of those local DNS addresses that we previously got stored in our computer, so the next time we go and visit a website, it will talk to the DNS server and make sure that it's got the most up to date information.

And that's it. That's how you clear your DNS Cache. This video explains how to clear out your Dns Cache on your computer.

The presenter explains what DNS is for and what a Cache is for. He explains that it is sometimes necessary to clear out, or delete, old addresses that get stored in the DNS Cache, so that your computer has the most up-to-date addresses. .