Dynamic DNS

Short for dynamic Domain Name System, a method of keeping a domain name linked to a changing IP address as not all computers use static IP addresses. Typically, when a user connects to the Internet, the user’s ISP assigns an unused IP address from a pool of IP addresses, and this address is used only for the duration of that specific connection. This method of dynamically assigning addresses extends the usable pool of available IP addresses. A dynamic DNS service provider uses a special program that runs on the user’s computer, contacting the DNS service each time the IP address provided by the ISP changes and subsequently updating the DNS database to reflect the change in IP address. In this way, even though a domain name’s IP address will change often, other users do not have to know the changed IP address in order to connect with the other computer.

Webopedia Staff
Webopedia Staff
Since 1995, more than 100 tech experts and researchers have kept Webopedia’s definitions, articles, and study guides up to date. For more information on current editorial staff, please visit our About page.

Related Articles

Phishing

What is phishing? Phishing is a type of cybercrime in which victims are contacted by email, telephone, or text message by an attacker posing as...

Photo Editing Software

Photo editing software is used to manipulate or enhance digital images. This category of software ranges from basic apps, which are able to apply...

SOHO Business Solutions: Free Email Marketing Services

Just like big businesses, SOHO (small office/home office) owners can leverage email marketing systems to communicate with customers, partners and employees. Just like big businesses,...

Fintech

Fintech, also known as "financial technology," is a term used to describe companies that use innovative technology to create more efficient, transparent, and cost-effective...

ScalaHosting

ScalaHosting is a leading managed hosting provider that offers secure, scalable, and affordable...

HRIS

Human resources information system (HRIS) solutions help businesses manage multiple facets of their...

Best Managed Service Providers...

In today's business world, managed services are more critical than ever. They can...