AW: Using NGINX as reverse proxy to webmin on a remote server

[Carsten Laun-De Lellis]

Hi Francis

First of all. Thank you very much for your quick reply.

As I said I am new to Nginx and not 100% sure, what information you need to help me here.

I tried your config, but it doesn't work. This means I am forwarded to the webmin login page, but can see the basic html only (login form, headline). I cannot see any graphical elements, like colors, gifs ....

I have attached screenshots from the login page, and after login. I have also attached a simple network drawing how the servers are connected.

If you need some more information please let me know what to look for in the logs. 

Mit freundlichem Gruß / Best regards

Carsten Laun-De Lellis
 
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-----Ursprüngliche Nachricht-----
Von: Francis Daly <francis at daoine.org> 
Gesendet: Saturday, April 25, 2020 7:45 PM
An: nginx at nginx.org
Betreff: Re: Using NGINX as reverse proxy to webmin on a remote server

On Fri, Apr 24, 2020 at 09:01:36AM +0000, Carsten Laun-De Lellis wrote:

Hi there,

> The webin servers are setup according the following scheme:
> 
> WebminX runs on https://hostX.local.domain:10000.
> 
> My goal is to setup a central Nginx server and reverse proxy to the different webmin servers.

>         location /host1 {
>                 proxy_pass https://host1.local.domain:10000/;

For this, you probably want "location /host1/" (with the trailing /).

> Unfortunately this is not working. I have checked the internet but found only how-tos where Nginx and webmin server running on the same host. Also these how-tos don't work for me.
> 

What does "not working" mean here?

You make one specific request; you want to get one specific response; but you get a different response instead?


I suspect that things will be simpler if you are happy to reconfigure all of the "webmin" instances so that they believe they are installed at the same place in the url hierarchy as the external users see. That is:

* add the line webprefix=/host1 to /etc/webmin/config on host1
* add the line webprefix=/host2 to /etc/webmin/config on host2

and then change your config to only use one trailing slash like so:

  location /host1/ {
    proxy_pass https://host1.local.domain:10000;


And if there is still a problem, if you can show the request/response that does not do what you expect, it may be simpler for others to understand and help.

Cheers,

	f
-- 
Francis Daly        francis at daoine.org

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