Microsoft KB Archive/139341

= FTP Server Interaction with Guest Account =

Article ID: 139341

Article Last Modified on 10/31/2006

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APPLIES TO


 * Microsoft Windows NT Server 3.51

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This article was previously published under Q139341



SUMMARY
The FTP server in Windows NT 3.51 Server (non-domain controller) can be configured to validate users using the domain account data base or the local account data base. However, the guest account settings in both data bases must be correctly configured.



MORE INFORMATION
By default, an FTP client is validated against the local accounts data base. To enable a Windows NT Server domain member (non-DC) to validate ftp clients against the domain accounts data base, you must add the DefaultLogonDomain parameter (value type REG_SZ) to the following registry key location:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\FTPSVC\Parameters

WARNING: Using Registry Editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.

To do this, run the Registry Editor (REGEDT32.EXE). From the HKEY_LOCAL_MACHINE subtree, go to the key:

\System\CurrentControlSet\Services\FTPSVC\Parameters

Choose ADD VALUE from the Edit menu. Enter in DefaultLogonDomain as the value name with a data type of REG_SZ. The String needs to be the domain name to validate users against. If you are using the MyDomainName domain to validate users, the entry would look like the following:

DefaultLogonDomain:REG_SZ:MyDomainName

If you use the guest account for anonymous connections and/or you wish to allow access to user names not in the domain data base, you must pay special attention to whether the guest account is enabled or disabled on both the domain account data base AND the local account data base.

Below is a table describing the behavior of the ftp server when guest accounts are enabled or disabled on the local machine and domain:

  Guest Account Setting   FTP Server Behavior -     Local      Domain       Anonymous Users   Random User (not in domain   Guest      Guest        Allowed Access?   database) Allowed Access? ---  --   ENABLED    DISABLED     Yes                Yes

DISABLED  ENABLED      Yes                No

ENABLED   ENABLED      Yes                Yes

DISABLED  DISABLED     No                 No

Keywords: KB139341

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