Access a Caddy server by IP

Question

I have a website with docker and I use caddy for production. This is my configuration on my Caddyfile

mydomain.com {
    proxy / django:5000 {
        header_upstream Host {host}
        header_upstream X-Real-IP {remote}
        header_upstream X-Forwarded-Proto {scheme}
        header_upstream X-CSRFToken {~csrftoken}
    }
    log stdout
    errors stdout
    gzip
}

This configuration works well when I use mydomain.com, but when I try to access the server by IP it returns me the following error:

404 Site 156.130.11.8 is not served on this interface

I've tried using *, 156.130.11.8, and :80

* {
    proxy / django:5000...
    ...

156.130.11.8 {
    proxy / django:5000...
    ...

None of this is working either, does anyone of you know how can I solve this?

EDIT: The code is here: https://github.com/maguayo/django-starter-api Caddy configuration is under compose/production/caddy/ also the configuration I am running is on "production.yml"

Answer 1

According to these tutorials:

https://www.digitalocean.com/community/tutorials/how-to-host-a-website-with-caddy-on-ubuntu-16-04

https://www.booleanworld.com/host-website-caddy-web-server-linux/

https://caddyserver.com/docs/caddyfile-tutorial

your Caddy server should serve the website on your ip using port 80 using one of the follwing configurations:

* {
    proxy / django:5000...
    ...

156.130.11.8 {
    proxy / django:5000...
    ...

:80 {
    proxy / django:5000...
    ...

http:// {
    proxy / django:5000...
    ...

Maybe http://156.130.11.8 { proxy / django:5000 ... } will do the job. Also try to use localhost instead of the ip address like this:

localhost {
    proxy / django:5000...
    ...
}

http://localhost {
    proxy / django:5000...
    ...
}

Good luck!

Answer 2

Is it possible that your Django settings.py only has the mydomain.com as allowed host and not the IP? That way the server should return something like "is not served on this interface" and it shouldn't when the domain name is used.

I experienced a similar problem some time ago, not with Caddy but Apache also on Ubuntu. It would also explain why changing your Caddy config doesn't solve the problem, as it is correct.

settings.py should have a line like

ALLOWED_HOSTS = [IP, 'mydomain.com']

More on this parameter can be found in the documentation.