DNS is an acronym that stands for “domain name system”. Without domain names, we wouldn’t have a way of getting to particular a website, such as numbers like 292.14.78.251, or worse the new ipv6 numbers that are much longer, too long in fact to provide an example here. In this article we will give an overview of how D.N.S functions. The most important thing, that our web hosting customers can learn from this, is the process of how DNS records are changed, or updated to your web host’s “name servers” address’. These are important domain names which also rely on the DNS system to be converted into your webserver’s numerical IP-address. “Name Servers” Name servers enable people to use their domain name in order to access your webserver; which then in turn directs your site visitors to your specific web hosting account and files, rather than a complex IP address. DNS also makes economical “shared hosting” possible, since the server’s IP address can be reused for dozens of different websites. Your name servers are the most important detail of your domain record, again their purpose is to redirect a visitor’s web browser to the place, that is web-server on a rack in a data-room someplace, where your site is being hosted. Modifying your domain name server(s) enables you to change your web host without having to transfer your domain to another registrar. Name servers can also be referred to as DNS servers; which can create confusion due to the two synonymous terms. DNS Records DNS refers to the layer of the internet stack, very similar to a database application, that contains the domain names, name servers, IP address’ and personal or company registration information encapsulating every public site on the Internet.DNS records contain various types of data, syntax, and commands for how a webserver should respond to lookup requests. Some of the most common syntax items defined: · “A”-record. The actual webserver IP address that is associated with the domain. · “CNAME”-record. CNAME indicates sub-domains that can be associated with your domain. · “MX”-record. This refers to specific mail servers that might be optionally used in accordance with your domain,...
