Virtual Host configuration for Rails with NTLM using mod_auth_sspi. <%= request.env["HTTP_X_FORWARDED_USER"] %> # Gets Username

rails-ntlm.conf

<VirtualHost *:80>
    ServerName cagv11
    DocumentRoot "C:/web/testing/public"

    ProxyPass / http://localhost:3000/
    ProxyPassReverse / http://localhost:3000/
    ProxyPreserveHost On

    <Proxy *>
        AuthName "Iconica"
        AuthType SSPI
        SSPIAuth On
        SSPIAuthoritative On
        SSPIOmitDomain On

        require valid-user

        RewriteEngine On
        RewriteCond %{LA-U:REMOTE_USER} (.+)
        RewriteRule . - [E=RU:%1]
        RequestHeader add X-Forwarded-User %{RU}e
    </Proxy>

</VirtualHost>