# Upstream server does not match virtual host **URL:** \ **Category:** NGINX\ **Created:** [March 16, 2016, 1:21am UTC](https://www.ruby-forum.com/t/upstream-server-does-not-match-virtual-host/244289 "2016-03-16T01:21:07Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Sadaf\_N](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/858c86/32.png) [@Sadaf\_N](https://www.ruby-forum.com/u/Sadaf_N)\ **Post date:** [March 16, 2016, 1:21am UTC](https://www.ruby-forum.com/t/upstream-server-does-not-match-virtual-host/244289/1 "2016-03-16T01:21:07Z")
Hello, I have a web server (nginx, iis, apache, whatever) on which I access: [http://1.1.1.1](http://1.1.1.1) =\> displays default page [http://virt1](http://virt1) =\> displays virtual host 1 (ping virt 1 = 1.1.1.1) When I access the url virt1 the page of the corresponding virtual host which is different from when I access the url with the ip adress NB: if I access [http://1.1.1.1/virt1](http://1.1.1.1/virt1), it’s the same page as [http://virt1](http://virt1) I use a nginx server in front of it as a reverse proxy and use a virtual host. When I access [http://portal](http://portal), I want it to display the page as if it was [http://virt1](http://virt1) My configuration starts like this upstream webservers { server virt1:80; } server { listen 80; server\_name server\_name portal; index index.php index.html; location @proxy { proxy\_pass [http://webservers](http://webservers); include /etc/nginx/proxy\_params; } With this configuration it works but not as I wish. When I access the page [http://portal](http://portal) it displays the page as if I accessed [http://1.1.1.1](http://1.1.1.1) but I wanted it to display the page that looks like [http://virt1](http://virt1) If I access [http://portal/virt1](http://portal/virt1) it displays the correct page. Conclusion my configuration makes my nginx connect to the right server but doesn’t send a parameter so that I access on the right virtual host. Do you know how to correct this ? Thank you Posted at Nginx Forum: > **[upstream server does not match virtual host](https://forum.nginx.org/read.php?2,265370,265370#msg-265370)** > > Hello, I have a web server (nginx, iis, apache, whatever) on which I access: http://1.1.1.1 =\> displays default page http://virt1 =\> displays virtual host 1 (ping virt 1 = 1.1.1.1) When I access the url virt1 the page of the corresponding... ---
**Author:** ![miky](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/a6a055/32.png) [@miky](https://www.ruby-forum.com/u/miky)\ **Post date:** [March 16, 2016, 9:34am UTC](https://www.ruby-forum.com/t/upstream-server-does-not-match-virtual-host/244289/2 "2016-03-16T09:34:44Z")
On Tue, Mar 15, 2016 at 08:20:25PM -0400, miky wrote: Hi there, > I use a nginx server in front of it as a reverse proxy and use a virtual > host. When I access [http://portal](http://portal), I want it to display the page as if it > was [http://virt1](http://virt1) > **[Module ngx\_http\_proxy\_module](http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_set_header)** > > The ngx\_http\_proxy\_module module allows passing requests to another server. ## f Francis D. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) ---
**Author:** ![miky](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/a6a055/32.png) [@miky](https://www.ruby-forum.com/u/miky)\ **Post date:** [March 16, 2016, 12:34pm UTC](https://www.ruby-forum.com/t/upstream-server-does-not-match-virtual-host/244289/3 "2016-03-16T12:34:05Z")
Thank you Francis for pointing the right direction. If I understand correctly the documentation I should add proxy\_set\_header Host $host; considering I had the upstream server defined by: upstream webservers { server virt1:80; } I tried it but had no luck with it, I also tried $http\_host; and $proxy\_host; Also should I place this proxy\_set\_header before the proxy\_pass ? I think yes, could you confirm this ? Regards Posted at Nginx Forum: > **[Re: upstream server does not match virtual host](https://forum.nginx.org/read.php?2,265370,265391#msg-265391)** > > Hello, I have a web server (nginx, iis, apache, whatever) on which I access: http://1.1.1.1 =\> displays default page http://virt1 =\> displays virtual host 1 (ping virt 1 = 1.1.1.1) When I access the url virt1 the page of the corresponding... ---
**Author:** ![miky](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/a6a055/32.png) [@miky](https://www.ruby-forum.com/u/miky)\ **Post date:** [March 17, 2016, 12:12am UTC](https://www.ruby-forum.com/t/upstream-server-does-not-match-virtual-host/244289/4 "2016-03-17T00:12:46Z")
Francis, Thank you very much, your help is always appreciated. It didn’t work in the first place because I also had an include proxy params statement which overrided the setting you indicated. Retesting from a very basic configuration proved the solution you offered worked. At the end I kept the include proxy param and modified what I wanted there. Have a nice day Posted at Nginx Forum: > **[Re: upstream server does not match virtual host - SOLVED](https://forum.nginx.org/read.php?2,265370,265417#msg-265417)** > > Hello, I have a web server (nginx, iis, apache, whatever) on which I access: http://1.1.1.1 =\> displays default page http://virt1 =\> displays virtual host 1 (ping virt 1 = 1.1.1.1) When I access the url virt1 the page of the corresponding... ---
**Author:** ![miky](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/a6a055/32.png) [@miky](https://www.ruby-forum.com/u/miky)\ **Post date:** [March 16, 2016, 5:53pm UTC](https://www.ruby-forum.com/t/upstream-server-does-not-match-virtual-host/244289/5 "2016-03-16T17:53:03Z")
On Wed, Mar 16, 2016 at 07:33:45AM -0400, miky wrote: Hi there, > If I understand correctly the documentation I should add > proxy\_set\_header Host $host; What Host: header is sent by the browser to the upstream web server when things work? From the original mail, that seems to be “virt1”. So you want proxy\_set\_header Host virt1; > Also should I place this proxy\_set\_header before the proxy\_pass ? I think > yes, could you confirm this ? Easiest is to say “in the same {}-block as the proxy\_pass”. The order of the two within that block does not matter. Good luck with it, ## f Francis D. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)