Dynamic DNS is necessary for computers with variable IP addresses to maintain a website or web server without worrying about accessibility. It changes the website’s IP address to keep up with changes in connectivity, eliminating the need to type in the exact numbers of the IP address. Dynamic DNS is available to both personal and large web users and can be provided through hardware or software.
Whether you realize it or not, your computer may be changing its Internet address right now. It is true. Some computers have so-called variable IP addresses. This isn’t necessarily a problem, unless your website changes along with that IP address.
To avoid this problem, dynamic DNS is required. This stands for Dynamic Domain Name System and is the solution to a vexing problem that many people are unaware of. Using dynamic DNS, you can maintain a website or web server and not worry that others might suddenly not be able to access it.
When you connect to the Internet, your Internet Service Provider assigns you a temporary IP address that lasts until you disconnect. If, during your internet session, you happen to update your website, your website’s IP address will change. The resulting situation is a problem for computers that aren’t equipped to track your website when its IP address changes.
Since your website is probably some sort of http setup of letters instead of numbers, you probably won’t notice that anything has changed. Dynamic DNS takes care of this by changing your website’s IP address accordingly, to keep up with changes in connectivity. In a sense, the numbers change but the letters never. This eliminates the need for the person wanting to view your website to type in the exact numbers of the IP address. Your name and address will do.
Dynamic DNS is available to both large and small web users. Personal users have only one or a few uses for dynamic DNS. Large companies have multiple needs and require greater amounts of equipment and/or software. Some of the biggest companies using dynamic DNS are the Internet service providers themselves.
Many companies make a living providing dynamic DNS to web users everywhere. This dynamic DNS can take the form of hardware or software. Hardware includes routers and other networking equipment. These network equipment regularly have dynamic DNS built into the firmware.
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