How do I set X-Forwarded-For ?

[mapariel]

Hi,

I am running plausible webanalytics on a docker container, behind nginx-proxy-manager as reverse proxy.

To get the IP of the clients forwarder to plausible, I need to set X-Forwarded-For header:
https://plausible.io/docs/self-hosting#existing-reverse-proxy

So far I have added a custom location '/' and add the header in the custom config. :
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
but it does not seem to work.

How do I proceed ?

Thanks

[amjkwd]

Because when you set up a custom / location, it will auto set these option.

`root@nginx-1:/data/ProxyManager/data# vim nginx/proxy_host/43.conf

location / {
proxy_set_header Host $host;
proxy_set_header X-Forwarded-Scheme $scheme;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header X-Real-IP $remote_addr;`

And yours X-Forwarded-For had been coverd. I'm looking for a solution, too.

[mapariel]

Thanks. My docker container runs on a Synology NAS. It might be that the issue is not linked to Nginx Proxy Manager.

I am now using directly Nginx inside a Docker container and have followed this tip https://www.pedrolamas.com/2020/11/04/exposing-the-client-ips-to-docker-containers-on-synology-nas/ . It works fine now.

It would probably also work fine with Nginx Proxy Manager.

[kenaddams42]

Hi ! Have you found a solution ? Thanks.

[amjkwd]

Yeah, I had work it out. You can write your own location code in advanced tab(not custom locations tab), and it will cover the default location option.

[mapariel]

Thanks for fixing that.

[john-clark]

@amjkwd What was the specific information needed in the advanced tab?

[amjkwd]

What you write in the advanced tab, will be add to nginx's server context.
So you can write just a simple option that works in server context.
Such as:

proxy_connect_timeout 60s;

Or, you can also add full location context into advanced tab.
Such as :

location / { proxy_set_header Host $host; proxy_set_header X-Forwarded-Scheme $scheme; proxy_set_header X-Forwarded-Proto $scheme; proxy_set_header X-Forwarded-For $remote_addr; proxy_set_header X-Real-IP $remote_addr; }

Try yourself and see things really changed in the conf file.

[john-clark]

This did not work at all. That line ended in 404 not found. Without the the "location / { }" and just the proxy_set_* lines Nextcloud says proxy header is incorrect.

Edit: I believe this is because I am hitting the proxy from inside my network. When use an outside IP it works as expected.

[amjkwd]

My code in location / { } is just a exsample snnipet and only include some proxy header options only, you need orther options to make it proxy your website correctly. Google "proxy website with nginx" may help you.