Single-label DNS names issue

Single-label DNS names issue

DNS names that do not contain a suffix such as .com, .corp, .net, .org or companyname are considered to be single-label DNS names. For example, "chicagotech" without .net is a single-label DNS name.

Microsoft does not recommend that you use domains that have single-label DNS names. If you do create single-label DNS names, you may have the following issues:

•	Single-label DNS names cannot be registered with an Internet registrar.
•	Domains that have single-label DNS names require additional configuration.
•	The DNS Server service might not be used to locate domain controllers in domains that have single-label DNS names.
•	By default, Windows Server 2003-based domain members, Windows XP-based domain members, and Windows 2000-based domain members do not perform dynamic updates to single-label DNS zones.

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