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Alias for Domain Controller

Posted on 2010-11-29
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Last Modified: 2012-05-10
I have a Windows-based license manager application that uses an encrypted form of a doman name and server name.   My application is not localized and will not work with cyrillic characters.  My problem is this.  If my customer has a license server with Russian characters in the domain name then I am not able to install my license application,  The server name can be replaced with an IP address so this is not a big deal.  It's the domain name that I need to deal with.   I want to know if it is possible to create an alias doman name.   And is this dependant on the platform.
Or is there some other option.  I can easily convert the application user interface, but with encryption this is painful.  Thanks.
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Question by:WarriorTech
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9 Comments
 
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Expert Comment

by:denissie
ID: 34236704
Hi WariorTech,

I didn't fully understand why you're not using unicode in your application?

Note that using a hardcoded IP (for the servername) might be dangerous: IP tend to change in lots of network configurations (DHCP, etc.) - this might be solved by defining a DNS name with no Russian chars (in the current case).

Denissie
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Author Comment

by:WarriorTech
ID: 34239524
Hi Denissie

The original application was not written to support Unicode years ago.  Eventually I will rewrite the app.

My app needs the Doman name (or Workgroup name) and a Server name.  So I have a DC and a dedicated Server (license server).  This license server is where I install my license manager.

If the client has Russian characters (for example ¿¿¿¿¿¿¿¿ and ¿¿¿¿¿¿) for names then my program will not work,  I'm just trying to find out a quick way to do this, ie. if CNAME would work or something else

Thanks.
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Author Comment

by:WarriorTech
ID: 34239535
those upside down characters are Russian cyrillic characters.   Apparently this website is not UTF-8 / Unicode.
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Expert Comment

by:denissie
ID: 34240412
You should be able to define different DNS names for the same (IP) value. Meaning, that you could define non-unicode DNS names for the servers (etc.) that already have unicode DNS names.

Note: if you don't want to change your DNS settings, you may always use the host file to define new name-to-IP mappings, BUT those mapping will only be valid on that computer.
This mean that if your application runs on X different computers, you'll have to add those entries in the host file of all those X computers.

Just to be sure: Are you looking for such a solution?
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Author Comment

by:WarriorTech
ID: 34240975
Perhaps another way to solve this is .... are there any restrictions on the naming of Domains and Servers?   ie. can someone create a server name or domain name with non-alphanumeric characters?   If the answer is no then I don't have anything to worry about and this case is closed.
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Expert Comment

by:denissie
ID: 34241131
The answer is yes (ref: http://en.wikipedia.org/wiki/Internationalized_domain_name)
=> that doesn't seem to be the solution...
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Accepted Solution

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WarriorTech earned 0 total points
ID: 34241176
Answered my own question.  Found this.   http://support.microsoft.com/kb/909264

In DNS computer names, use only the characters that are listed in RFC 1123. These characters include A–Z, a–z, 0–9, and the hyphen (-). In Windows Server 2003, DNS allows most UTF-8 characters in names. However, do not use extended ASCII or UTF-8 characters unless all the DNS servers in your environment support them.

DNS host names can contain only alphabetical characters (A-Z), numeric characters (0-9), the minus sign (-), and the period (.). Period characters are allowed only when they are used to delimit the components of domain style names.

In the Windows 2000 domain name system (DNS) and in the Microsoft Windows Server 2003 DNS, the use of Unicode characters is supported. Other implementations of DNS do not support Unicode characters. Avoid Unicode characters if queries will be passed to the servers that use non-Microsoft implementations of DNS.

So I guess it it is possible to have Russian characters in a computer name.
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Expert Comment

by:James Murrell
ID: 36434005
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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