What Is A Domain Nameserver (DNS)
A nameserver is a computer server that implements a name service protocol. It will normally map a computer-usable identifier of a host to a human-usable identifier for that host. For example, a Domain Name System (DNS) server might translate the domain name domaininform.net to the Internet Protocol (IP) address 145.97.39.155. DNS is the protocol implemented by Internet name servers. Name servers also exist on some Microsoft Windows networks where one host can take the role of NetBIOS Master Browser and act as a NBNS server. In small local networks of Windows systems there is no central name server, and name resolution is performed using broadcasts. In other words A domain name server is what make the I.P. address of your website a domain name.
What Are Static/Dynamic DNS & Why Do I Want Them?
When you host your website on a commercial or free web host, you usually get a static IP address for your website - that is, an IP address that doesn't change. (IP addresses are the like street addresses on the Internet.) Although web hosts typically provide the name servers for your domain name hosted on their servers, you may sometimes want to outsource your DNS so that you can freely manage your own domain names (such as when you want the freedom to create new subdomain names that reside on different web hosts). Some people outsource their DNS because they have numerous servers in diverse locations answering to the same domain name (for load balancing) - they have more sophisticated DNS needs than the typical site (in this case, they may want something known as round robin DNS). Still others simply don't want to put all their eggs in one basket.
Dynamic IP addresses usually occur when a website is hosted on someone's personal computer, and that computer is only connected to the Internet when the owner connects to his/her ISP. The ISP gives that computer an IP address that is different everytime it connects. If this is your situation, you will need a dynamic DNS service that will update their nameservers with your new IP address each time you log on.
Another use for free DNS services like those listed below is when you register a domain name of your own in order to reserve it for future use, but don't have a website to point it to (yet). Some of the free DNS services allow you to park your domain at any of your existing websites.
Root Server
One of several domain name system (DNS) servers on the Internet that contain the IP addresses of the top level domain (TLD) registry organizations that maintain the global domains (.com, .net, .gov, etc.) and country code domains (.uk, .ca, .fr, etc.). The first point of entry for resolving a domain name, there are currently 34 root servers throughout the world operated by government agencies and private organizations, all of which contain the same data. The original 13 root servers (named A through M), came under a denial of service (DoS) attack in late 2002, and some of them were temporarily knocked out of service. Subsequently, additional servers were deployed.
ISPs and other institutional organizations routinely download copies of the root server tables so that name resolution can be performed locally. There are thousands of these "resolver" computers throughout the Internet that keep the main root servers from becoming overloaded.
When you transfer a domain you need to change the nameserver
If you decide to transfer a domain name you will need to change the nameserver. Let’s say I have hosting, I then transfer a domain name to my hosting account. If I would like to use the domain I will need to change the domain nameserver to that of my hosting in order for me to use my domain name.
Changing A Nameserver To Use A 301 Redirect
When domain inform first decided to go online it was under domaininform.net later on I found that somebody was selling domaininform.com I then bought the domain name and decided to transfer the domain to my hosting account. I then wanted to setup a 301 redirect so that no matter if they decided to type in domaininform.net or domaininform.com they would then be redirected to my website. I transferred the domain to my hosting account and started the redirect to domaininform.net but I could not redirect to domaininform.net because I still had to change the nameserver. Once I changed the nameserver the redirect then worked fine. So if you decide to register a domain name with another register or at another place other than your hosting you will have to make sure it’s namesever is setup correctly.
Using multiple domain names to redirect to a single website
by using different hosting for the domain names
Let’s say I have hosting for my website and I decide to register a domain name that's new and that has never existed before. Let's say I decide to register a domain name some where other than my hosting. When you first register a domain name you have to wait 60 days before you can transfer that domain name from that register. How can I use my domain right now? Well most registers will let you do a 301 redirect for their webhosting account. They might also offer domain parking too. You will have to choose the right domain nameserver that lets you do a 301 redirect from their nameserver when you first register a domain name. Are hosting only lets you use 10 domains, but what if I want to use more then ten. Well if you register a domain name from a different register most of the time the register will let you do a 301 redirect. So in that would mean you could redirect as many names as you wanted to your website.
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