DNS and Domain Transfer

Nama: Woody Allen
Email: marketing@exabytes.com.my
Website: http://exabytes.com.my
Tajuk: DNS and Domain Transfer
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In the Domain Name Server (DNS) hierarchy, a subdomain is a domain that is part of a larger domain name. A DNS hierarchy consists of the root-level domain at the top, underneath which are

the top-level domains, followed by second-level domains and finally subdomains.
Valid subdomains as described by RFC 1034 may contain any letter or number as well as the '-' (hyphen), but must begin with an alphabet character. While both upper and lower case

characters are valid, subdomains are case insensitive so 'ABC.com' is identical to 'abc.COM'.

Length of sub domain
The length of a particular subdomain label is restricted to 63 characters, but the number of subdomain labels in a domain name is arbitrary.

Structure
Subdomains are separated by dots "." and are read from left to right, in descending specificity. Each consecutive subdomain contains all previous subdomains, and is contained by any

subsequent subdomains. All subdomains are contained by the second-level domain, which is in turn contained by its top level domain.
Example:
subCBA.subBA.subA.domain.tld

In this example the top level domain is 'tld' and the second level domain is 'domain'. Within 'domain' the subdomains are contained in a tree structure.

Popular real-life examples would be news.google.com, mail.yahoo.com, support.exabytes.com and en.wikipedia.org, in which news, mail and en are subdomains, respectively.

Registries require the use of name servers or hosts for every domain registered. Parking is the process by which someone selects a domain name, and "parks" it by registering the domain name

under someone's name servers. Parking can be done by anyone, to anyone else who has active name servers. However, parking a domain name alone will result in no service (webhosting, e-

mail) for that particular domain name.

In other words, parked domains are additional domains that you host on your hosting account. It will display the same website as your main domain and do NOT have separate web statistics,

but you can give the parked domain its own email boxes. It's often used by businesses that wants to have more than one web address for advertising purposes.

For a Domain Transfer

First off, when you use this term it usually refers to a Domain Registrar transfer. A domain registrar transfer happens when you transfer your domain from one domain registrar to another. For

example, transfer your domain from GoDaddy.com to Enom.com. The new registrar takes over management and billing for your domain.

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