I have a website that is accessible from within a corporate network standardized on the microsoft windows platform. What I want to do is to have parts of a webpage content customized depending on the domain user.
closed as off topic by Alex, Eight Days of Malaise, phwd♦ Feb 27 '12 at 2:16
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If you want single-sign-on, then you need to setup Kerberos on your web server, and then setup NTLM authentication. If the web server is running IIS this is pretty easy.
If you just want to use the same accounts, and don't mind that your users will need to provide their password a couple times, then you must make the application link into the AD via LDAP.