Why would Dynamic DNS be used?
Typically, computers on the Internet are located using a numbering scheme called IP addressing. However, IP addresses such as 192.168.76.229 can be difficult for people to remember, so a scheme called DNS (Domain Name Service) was developed. DNS is a database that maps a human-friendly name, a domain name, to an underlying IP address. For instance, DNS allows you to type www.yahoo.com instead of 64.58.76.229 to get to Yahoo!. Not only are IP addresses difficult to remember, but they may not even stay the same. Most Internet service providers assign dynamic and not static IP addresses to their subscribers. A dynamic IP address means that every time you connect to your ISP or at certain intervals, your computer’s IP address may change. This poses a problem if you try to run a server using a dynamic IP address, since the domain name-IP address mapping in DNS will become invalid at every change. Visitors might be sent to a different or invalid machine if they try to use a domain name to ge
