From: Ryan Victory Date: 2013-07-12T00:33:17+09:00 Subject: Re: How to get the User_logged in windows with Sinatra I have explored this as well, you'll need to use a web server like Apache or nginx with mod_kerberos (or similar) and reverse proxy to your application. I have seen a few gems that do NTLM natively, but I haven't ever tried them. Another option would be to reverse proxy through IIS, although I'm not 100% sure if this is possible (or feasible in your environment). -Ryan Victory On 7/11/13 4:55 AM, Mario Ruiz wrote: > Yes like... for example in IIS when enabling Windows Authentication >