When you create DNS names for the computers on your network, develop and follow a logical DNS computer-naming convention. This makes it possible for users to remember easily the names of computers on public and private networks, which facilitates access to network resources.
Use the following guidelines when you create DNS names:
For example, andrew-dixon indicates that Andrew Dixon uses the computer, and pubs-server indicates that the computer is a server that belongs to the Publications department.
For example, a file server named past-accounts-1 indicates that the file server stores information related to past accounts.
Do not use capitalization to convey the owner or purpose of a computer.
DNS is not case sensitive.
Match the AD DS domain name to the primary DNS suffix of the computer name.
The primary DNS suffix is the part of the DNS name that appears after the host name.
Use unique names for all computers in your organization.
Do not assign the same computer name to different computers in different DNS domains. For example, do not use such names as server1.acct.contoso.com and server1.hr.contoso.com. Also, do not use the same computer name when a computer is configured to run different operating systems. For example, if a computer can run Windows Server 2008 or Windows Vista, do not use the same computer name for both operating systems.
Use ASCII characters to ensure interoperability with computers running versions of Windows earlier than Windows 2000.
For computer and domain names, use only the characters A through Z, 0 through 9, and the hyphen (-). Do not use the hyphen as the first character in a name.
In particular, the following characters are not allowed in DNS names:
comma (,)
tilde (~)
colon (:)
exclamation point (!)
at sign (@)
number sign (#)
dollar sign ($)
percent sign (%)
caret (^)
ampersand (&)
apostrophe (')
period (.), except as a separator between names
parentheses (())
braces ({})
underscore (_)
The number of characters in a name must be between 2 and 24.
Avoid nonstandard TLDs such as .local. Using a nonstandard TLD will prevent you from being able to register your domain name on the Internet.
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