Microsoft KB Archive/185988

= Problem Accessing Security-Enhanced Site with Internet Explorer for UNIX =

Article ID: 185988

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Internet Explorer 4.0 for UNIX

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This article was previously published under Q185988



SYMPTOMS
When you use Internet Explorer 4.01 for UNIX on Sun Solaris to access Web resources that require user login, access may be denied.



CAUSE
The February 1998 version of Internet Explorer 4.01 for UNIX on Sun Solaris does not support Windows NT Challenge/Response (NTLM) authentication. Basic authentication is supported in this release.



RESOLUTION
To work around this behavior, the "Mozilla/4.0 (compatible; MSIE 4.01; SunOS 5.5.1 sun4u; X11)" user agent string should be used by the Web server to detect this version of Internet Explorer and alter the method of authentication to Basic authentication.

NOTE: The SunOS version number and the term "sun4u" in the user agent string varies based on the model of the SPARCstation and version of Solaris that you are using.



STATUS
Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article.

Additional query words: msieunix

Keywords: kbenv kbprb KB185988

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