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Exchange 2007 Packages

Business Basic PackageBusiness Basic Package What features and functionality does the Business Basic Package provide?

Business Advanced PackageBusiness Advanced Package What features and functionality does the Advanced Business Package provide

Business Premium PackageBusiness Premium Package What features and functionality does the Business Premium Package Provide?

What is DNS?

Domain Name System (DNS) is a database system that translates a computer's name, known as a fully qualified domain name into an IP address.

Networked computers use IP addresses to locate and connect to each other, but IP addresses can be difficult for people to remember. For example, on the web, it's much easier to remember the web server www.incontechhosting.co.uk than it is to remember its corresponding IP address. DNS allows you to connect to another networked computer or remote service by using its user-friendly host name or computer name rather than its numerical IP address. Conversely, Reverse DNS (rDNS) translates an IP address into a computer name.

How Does DNS Work?

Each organization that maintains a computer network will have at least one server handling DNS queries. That server, called a name server, will hold a database of computer names and corresponding IP addresses within its network, plus a cache (remembered list of previous lookups in memory) of IP addresses for recently accessed computers outside the network. Each computer on each network needs to know the location of only one name server. When your computer requests access to resource a DNS lookup against a name server is performed, one of three things happens, depending on whether or not the requested IP address is within your local network:
  • If the requested IP address is registered locally (i.e., it's within the organisation's network), you'll receive a response directly from one of the local name servers listed in your computers configuration. In this case, there usually is little or no wait for a response.
  • If the requested IP address is not registered locally, and you are the first person to request information about this system in a certain period of time (ranging from 12 hours to one week), then the local name server will perform a search on behalf of your computer. This search may involve querying two or more other name servers at potentially very remote locations. These queries can take anywhere from a second or two up to a minute (depending on how well connected you are to the remote network and how many intermediate name servers must be contacted). Sometimes, due to the lightweight protocol used for DNS, you may not receive a response. In these cases, your workstation or client software may continue to repeat the query until a response is received, or you may receive an error message.
When you use an application such as a web browser to connect to a web server you type in the domain name rather than the IP address of that server. The web browser application takes the domain name and uses one of the above methods to retrieve its corresponding IP address from the name server. A good analogy is to think of DNS as an electronic telephone book for a computer network. If you know the name of the computer in question, the name server will look up its IP address.

Why Do I need a Domain Name?

If your company wants to own a website that can be accessed by entering your own domain name (http://www.mybusiness.co.uk) or if you want to have an email address of This e-mail address is being protected from spam bots, you need JavaScript enabled to view it then you will need to register a domain name first. When you register a domain name it makes this name unavailable to anyone else until your registration expires, normally this period will be either 1 or 2 years. At this point you as the domain name owner will be given the option to renew your registration. When choosing a domain name you should try and keep it as short as possible so people can easily remember it

What if I already have a domain name?

If you already own a domain name then you do not need to order any of our DNS services. All you have to do is to update or add DNS records depending on the type of service you have purchased from us. For example if you purchase our Exchange 2007 hosted service you will need to change your MX record to point to Incontechs mail servers. If you are unable to update your DNS records or don't know how to, simply contact us and we will help with this process.