How and why a host can have multiple netbios names?

As per article https://en.wikipedia.org/wiki/NetBIOS, section ‘NetBIOS name vs Internet host name’ says

When NetBIOS is run in conjunction with Internet protocols (e.g., NBT), each computer may have multiple names: one or more NetBIOS name service names and one or more Internet host names.

I cannot understand how can a computer can have multiple NetBIOS (NBT) names and why would it have ?

Answer

Microsoft added the feature of multiple NetBIOS names in Windows 2000/2003 servers.
Some example scenarios why this would be useful:

  • Recover a dead file server data from backup onto another working server and
    continue providing published shares to the users that are using the name
    of the dead server as well as users that use the existing name
  • Consolidating multiple file servers into one server
  • When acquiring a company, to transfer file server data to own server and
    share it using the same name and the same URL.

Additional NetBIOS names are specified in registry key
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\LanmanServer\Parameters
by adding a REG_SZ value named OptionalNames.

If this is not working, you might need under the same registry key to
add a REG_DWORD registry value named DisableStrictNameChecking with the value of 1.

For more information see the article
Multiple Server Names on Windows.

Attribution
Source : Link , Question Author : Netaniel , Answer Author : harrymc

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