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Universal Naming Convention UNC

[Summary]What is Universal Naming Convention (UNC)? In a network, the Universal Naming Convention (UNC) is a way to identify a shared file in a computer without having to specify (or know) the storage device it is on. In Windows operating systems, Novell NetW

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What is Universal Naming Convention (UNC)?

In a network, the Universal Naming Convention (UNC) is a way to identify a shared file in a computer without having to specify (or know) the storage device it is on. In Windows operating systems, Novell NetWare, and possibly other operating systems, the UNC can be used instead of the local naming system (such as the DOS naming system in Windows).

[MS-DTYP]: UNC

A Universal Naming Convention (UNC) string is used to specify the location of resources such as shared files or devices.

For RPC implementations, this type is declared as follows:

There are three UNC schemes based on namespace selectors: filespace selector, Win32API selector, and device selector. Only the filespace selector is parsed for on-wire traffic, the other two pass opaque BLOBs to the consuming entity. The filespace selector is a null-terminated Unicode character string in the following ABNF syntax:

Path (computing)

A path, the general form of the name of a file or directory, specifies a unique location in a file system. A path points to a file system location by following the directory tree hierarchy expressed in a string of characters in which path components, separated by a delimiting character, represent each directory. The delimiting character is most commonly the slash ("/"), the backslash character ("\"), or colon (":"), though some operating systems may use a different delimiter. Paths are used extensively in computer science to represent the directory/file relationships common in modern operating systems, and are essential in the construction of Uniform Resource Locators (URLs). Resources can be represented by either absolute or relative paths.

Path (computing)

A path, the general form of the name of a file or directory, specifies a unique location in a file system. A path points to a file system location by following the directory tree hierarchy expressed in a string of characters in which path components, separated by a delimiting character, represent each directory. The delimiting character is most commonly the slash ("/"), the backslash character ("\"), or colon (":"), though some operating systems may use a different delimiter. Paths are used extensively in computer science to represent the directory/file relationships common in modern operating systems, and are essential in the construction of Uniform Resource Locators (URLs). Resources can be represented by either absolute or relative paths.

Universal Naming Convention

Universal Naming Convention

Lets have a quick look on who files are named when using a network.

First, I prefer to see in the Titlebar the full path of a directory.
This is configured in the menu : "View" / "Folder Options" on the tab: "View":
Universal Naming Convention UNC

In this example, I browse via "My Computer" on the desktop to my E-drive, where I have
a shared directory called "MyDomain" (shared under the same name) and I look to the directory
"j_helmig", for which the full path-name is : "E:\MyDomain\j_helmig":
Universal Naming Convention UNC

Overview of DFS Namespaces

A namespace is a virtual view of shared folders in an organization. The path to a namespace is similar to a Universal Naming Convention (UNC) path to a shared folder, such as \\Server1\Public\Software\Tools. In this example, the shared folder Public and its subfolders Software and Tools are all hosted on Server1.

Universal Naming Convention and Drive Mapping

Frequently, the old ways are better

I’d thought that software evolution had progressed well beyond this topic. However, recent questions that I’ve received regarding accessing a file suggest there is some truth to the adage that, frequently, the old ways are better. However, to both include all of the information that you’ll need and to slide it past Editorial, we’ll have to keep things fairly terse, so stay with me!

[Editor: Admin]
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