Reverse-DNS

Reverse-DNS

The reverse domain name system (reverse-DNS), sometimes confused with Reverse DNS lookup or Reverse domain hijacking, is a system for naming components, packages, or types in computer systems. A characteristic of reverse-DNS strings is that they are based on registered domain names, only are reversed for sorting purposes. For example, if a company making a product called "MyProduct" has the registered domain name "example.com", they could use the reverse-DNS string "com.example.MyProduct" to describe it.

History

Reverse-DNS first became widely used with the Java platform, and has since been used for many other systems.Fact|date=July 2007

Examples

Examples of systems that use reverse-DNS are Sun Microsystems' Java platform and Apple's Uniform Type Identifier.

Example of reverse-DNS strings are:

* com.adobe.postscript-font (UTI string for Adobe's PostScript fonts)
* com.apple.ostype (UTI string for Apple's OSType)
* org.omg.CORBA (Java library for CORBA)
* org.w3c.dom (Java library for W3C's DOM)

References

External links

* [http://wiki.eclipse.org/index.php/Naming_Conventions Eclipse Naming Conventions]
* [http://gcc.gnu.org/ml/java/2000-04/msg00095.html Re: gnu.* namespace discussion]


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