Dynamic DNS
Dynamic DNS is a technology that allows you to update the IP address of a domain in real time. In order to fully understand how Dynamic DNS works, it is important to first understand domain names and name servers. Essentially, all website domain names are held on computer servers known as name servers. These servers are used, with the help of a Domain Name System (DNS) server, to change the domain name into something more easily recognizable by a computer, a internet Protocol (IP) Address.
Dynamic DNS works in roughly the same way outlined above, except that it is much more flexible with its features. Because of the dynamic systems associated with Dynamic DNS, this type of domain name system allows domain names to be accessed from servers that have dynamic, or varying, IP addresses. By allowing dynamic IP addresses to host domain names, Dynamic DNS makes it possible for people and other websites to connect to a particular server without having to track that server's IP address.
How Can I Implement Dynamic DNS?
A server operator can implement Dynamic DNS on nearly any computer server with a minimum of setup requirements. All one must do is simply change the maximum caching time, or the time intervals between caching of a domain, to a very short period. In the world of dymanic IP addresses, this time should be set to a period of a minute or two. This will prevent storage of the original IP address, allowing visitors to a particular site to update their old information by contacting the name server on each visit.
Dynamic DNS has found a home in a variety of markets, including the home server marketplace. As computer technology and Internet speeds increase, the home server market has expanded greatly over the years. Some smaller websites are now hosted on nothing more than home computers with a dynamic IP address, making it a necessity to allow for Dynamic DNS connections to such amateur server setups.
Related Articles on DNS
- What is DNS?
- How do I flush DNS?
- How do I find my DNS servers?
- What are public DNS servers?
- How do I perform a DNS lookup?
- What is reverse DNS?
- What is a dynamic DNS?
- What are DNS root servers?
- Understanding DNS
|
|
- DNS Root Servers
The DNS root servers are thirteen DNS server clusters which are responsible for delegating DNS requests to the top level domain (TLD) nameservers. The DNS Root Servers A.ROOT-SERVERS.NET. Operator: VeriSign Naming and Directory Services IP Address: 198.41.0.4 B.ROOT-SERVERS.NET. Operator: Information Sciences Institute IP Address: 192.228.79.201 C.ROOT-SERVERS.NET. Operator: Cogent Communications IP Address: 192.33.4.12 D.ROOT-SERVERS.NET. Operator: University [...]...
- DRAM (Dynamic Random Access Memory)
DRAM is Dynamic Random Access Memory. DRAM is the most common form of RAM. When someone says that a computer has "one gigabyte of RAM", what they really mean is that the computer has one gigabyte of DRAM. DRAM is called dynamic because it must constantly be refreshed or it will lose the data which [...]...
- How to Find DNS Servers
The easiest way to find DNS servers is by using the ‘nslookup’ tool. Start nslookup Set the search type to NS. This tells nslookup to search for nameservers Finally, enter the domain name for the nameservers being searched for Here are some search examples for the most popular searches: Finding the Lincsat DNS Servers $ [...]...
- How to Perform a DNS Lookup
Finding out information about a particular web site, such as who owns the domain, can be easily accomplished by using the following specified search engines. Here are the basics of doing a DNS lookup based on the URL, as well as an outline for performing a reverse DNS lookup. Basic DNS Lookup Many organizations offer [...]...
- Unable to Resolve Anything Error
There are a number of problems that can cause your computer to be unable to resolve anything: The DNS settings in your computer could be misconfigured The network settings in your computer could be misconfigured Your DNS servers could all be broken The network between your computer and your DNS servers could be down A [...]...