# Http keepalive proxy upstream **URL:** \ **Category:** NGINX\ **Created:** [July 12, 2010, 9:58am UTC](https://www.ruby-forum.com/t/http-keepalive-proxy-upstream/191411 "2010-07-12T09:58:55Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![Arjan\_Filius](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/e495f1/32.png) [@Arjan\_Filius](https://www.ruby-forum.com/u/Arjan_Filius)\ **Post date:** [July 12, 2010, 9:58am UTC](https://www.ruby-forum.com/t/http-keepalive-proxy-upstream/191411/1 "2010-07-12T09:58:55Z")
Hello nginx mailing-list, Just entered this email list, after setup nginx as reverse proxy. Configured nginx (nginx-0.7.67) on ubuntu 10.04LTS 64 bits as https → http reverse proxy. After successfull tests, now i noticed an issue with authenticating with ISS. and after some research i found out that it is the (missing) http-keepalive to backend is wat breaks authentication. I found a post of the issue with ISS/keepalives/authentication: > **[Turing off Http Keep-Alive and using Windows Authentication with IIS: Don't...](https://weblog.west-wind.com/posts/2006/Feb/05/Turing-off-Http-KeepAlive-and-using-Windows-Authentication-with-IIS-Dont-do-it)** > > In an attempt to reduce the connections that IIS uses in AJAX debugging scenarios I tried turning off Http Keep-Alives on the server, only to find that it breaks Windows Authentication with IIS. Which sound not verry promising to switch keepalive of on ISS\> > From what i read on > [Module ngx\_http\_proxy\_module](http://wiki.nginx.org/NginxHttpProxyModule) > NginxHttpProxyModule = It is an HTTP/1.0 proxy without the ability for > keep-alive requests yet. Is there any timeline known when that (proxy-upstream) keepalives may get implemented? Or perhaps other related information available? Thanks in advance, Regards, Arjan Filius – Arjan Filius [mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)