Microsoft KB Archive/259678

= Proxy Clients Accessing an Internal Web Site from the Internet Receive Error Message =

Article ID: 259678

Article Last Modified on 10/22/2002

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APPLIES TO


 * Microsoft Proxy Server 2.0 Standard Edition

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This article was previously published under Q259678



SYMPTOMS
Clients on the Internet that try to access a Web site on an internal network (Web publishing) may receive the following error message:

HTTP Error 401

401.1 Unauthorized: Logon Failed



CAUSE
This error message is generated only if you select the Allow Anonymous Access option as an authentication method. The Allow Anonymous Access option uses IUSR_ account credentials. The password for the IUSR_ account in Default Web Site properties does not match the password for the IUSR_  account in User Manager.



RESOLUTION
To resolve this issue, follow these steps on the proxy server:
 * 1) Click Start, point to Programs, click Windows NT 4.0 Option Pack, click Microsoft Internet Information Server, and then click Internet Service Manager.
 * 2) Right-click Default Web Site, and then click Properties.
 * 3) Click Directory Security.
 * 4) Under Anonymous Access and Authentication Control, click Edit.
 * 5) Under Account Used for Anonymous Access, click Edit.
 * 6) Click to select the Enable Automatic Password Synchronization check box.

Keywords: kberrmsg kbenv kbprb KB259678

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