IP Manager and DNS
Fully Qualified Domain Name
A domain name is a name of a server or device on the Internet which is associated with an IP address. Similar to how the street address of your house is one way to contact you and your phone number is another, both the IP address and the domain name can be used to contact a server or device on the Internet. While contacting you at your house address or with your phone number employ different methods, using a domain name instead of the IP address actually uses the same method, just a word based name is commonly easier to remember for most people than a string of numbers.
Understanding the parts of a domain name can help to understand how IP Manager works and what you need to be able to configure the modem. A fully qualified domain name (FQDN) generally has several parts.
•Top Level Domain (TLD): The TLD is the ending suffix for a domain name (.com, .net, .org, etc.)
•Country Code Top Level Domain (ccTLD): This suffix is often used after the TLD for most countries except the US (.ca, .uk, .au, etc.)
•Domain name: This is the name registered with ICANN (Internet Corporation for Assigned Names and Numbers) or the registry for a the country of the ccTLD (i.e. if a domain is part of the .ca TLD, it would be registered with the Canadian domain registry). It is necessary to have a name registered before it can be used.
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car54.mydomain.com
•.com is the TLD
•mydomain is the domain (usually noted as mydomain.com since the domain is specific to the TLD)
•car54 is the subdomain or server name associated with the device, computer, or modem regis- tered with mydomain.com
car54.mydomain.com.ca
This would be the same as above, but with the addition of the country code. In this example, the country code (.ca) is for Canada.
A URL (Universal Resource Locator) is different from a domain name in that it also indicates information on the protocol used by a web browser to contact that address, such as http://www.airlink.com. www.airlink.com is a fully qualified domain name, but the http://, the protocol identifier, is what makes the whole thing a URL.
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