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	Most Popular Tutorials • Microsoft Vista Home Networking Setup and Options The most daunting part of upgrading to Windows Vista may be trying to figure out where in the layers of menus the networking and file-sharing options are hidden. • Do It Yourself: Roll Your Own Network Cables It may not be something you do everyday, but having the supplies and know-how to whip up a network cable on the spot can be very handy. • Tips for Securing Your Home Router Seemingly minor and easily overlooked settings can still have profound security implications. Here are some steps you can take to make sure your wired or wireless home router — and by extension, your network — is as secure as possible.
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Changing Webhosts

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Dynamic DNS

When you change webhosts, you receive a new IP address.  The new webhost makes an entry into their nameservers (the machines that translate domain names into IP addresses) that equates your new IP address with your domain name. 

The final step in your domain move is contacting the company that you registered your domain with to change their nameserver record to point to your new webhost's nameservers.

If all this happened instantaneously, or even over the course of a few minutes, there wouldn't be a problem.  However, the Domain Name System consists of tens of thousands of databases that are distributed across the world.   The database update process can take 24 to 72 hours before all the nameservers on the planet know that "yourdomain.com" is now located at a different IP address. 

During that time, "yourdomain.com" really needs to be in two places (or webhosts) at the same time, because "yourdomain.com" is going to translate into an IP address using the information on the DNS server of whoever is trying to reach your site (or email).

As you can see, it takes time to change webhosts and if you find your webhost isn't a good choice, your site (and email) could be unreachable for days while you scramble to find another!