Article ID: 175805
Article Last Modified on 5/2/2006
APPLIES TO
- Microsoft Visual InterDev 1.0 Standard Edition
This article was previously published under Q175805
SYMPTOMS
When using NT Challenge/Response authentication, individuals accessing the
site from the Internet receive "Error: Access Is Denied" when trying to
access a secure Web page or directory.
Users connecting to the site internally (via corporate LAN) and logged onto
the authorized NT Domain are granted access.
CAUSE
NT Challenge/Response (NTLM) is unable to authenticate users who do not
have a direct connection to the Internet Information Server (IIS) server.
Therefore, users coming to a site through a corporate or ISP Proxy server
will receive the "Error: Access Is Denied" message.
RESOLUTION
In order to secure the site for use from the Internet, Basic Authentication
must be turned on and NTLM should be turned off. This will allow the
individual accessing the page from the Internet the opportunity to enter a
valid NT account name and password.
STATUS
This behavior is by design.
REFERENCES
For the latest Knowledge Base articles and other support information on
Visual InterDev and Active Server Pages, see the following page on the
Microsoft Technical Support site:
Additional query words: Internet Security, IIS, NTLM
Keywords: kberrmsg kbprb KB175805