Mr Bonjour's questions

I'm trying to redirect my domain url to my local server.

For some reason it work with the localhost (mapping from http://localhost/ to http://127.0.0.1:5000 works), but I can't make it working with my domain name (http://www.example.com)

Here's my nginx conf:

    ...
server {

        listen       80;
        server_name  www.example.com localhost;

        location / {
           proxy_pass http://127.0.0.1:5000;
           proxy_set_header Host $host;
        }
    }
...

Is there's something I am missing?

edit

It seems that the problem was about the reolution of 0.0.0.0, localhost and 127.0.0.1 . Rewriting my proxy_pass to http://0.0.0.0:5000 did the trick. Inversely with my server as long as it match exactly the nginx conf.

My error was because I thought 0.0.0.0 / 127.0.0.1 / was interchangeable. Thanks for your help.

I'm using kubernet to deploy my application: Here's my service description:

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: flaskgql
  labels:
    name: flaskgql
spec:
  replicas: 1
  template:
    metadata:
      labels:
        name: flaskgql
    spec:
      containers:
      - name: flaskgql
        image: cryptodraco/flask_gql
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 8080
        volumeMounts:
          - name: secrets
            mountPath: /etc/secrets
            readOnly: true
      volumes:
      - name: secrets
        secret:
          secretName: db-passwords
---

apiVersion: v1
kind: Service
metadata:
  name: flaskgql
  labels:
    name: flaskgql
spec:
  type: LoadBalancer
  #loadBalancerIP: 35.189.238.42
  ports:
  - port: 80
    targetPort: 8080
  selector:
    name: flaskgql

When I list my services, everythings is fine:

flaskgql  LoadBalancer   10.59.251.206   35.189.238.42   80:30677/TCP   6m

And my docker file is as follow:

FROM gcr.io/google_appengine/python

RUN virtualenv /env

# source venv/bin/activate
ENV VIRTUAL_ENV /env
ENV PATH /env/bin:$PATH

ADD requirements.txt /app/requirements.txt
RUN pip install -r /app/requirements.txt

# no database - SQL only
#ENV NODB 1

ADD . /app

CMD gunicorn -b :$PORT wsgi:app

But when I try to access my assigned static ip, it is not working. Note: I have already done the same thing before and it was ok. But now when I access the static ip, I get a 404error. Seems like my gunicorn server is not port forwarded to the ip. Even if from gcloud I get:

I don't know if it is because I should stick the VM instead of the instance. But all I know is that it is not working and I have no idea how to debug that. Thanks in advance

I have configured my server with iptables rules in order to forward all traffic to a specific domain. Those are NAT rules and the redirection works fine as long as I have internet access. But when internet is off, of course the forwarding doesn't work anymore.

Is there's a way to redirect all the url to a specific domain without internet access?

From what I have observed, if I plug and internet cable and then unplug it, the redirection still works for about 10 minutes, so there must be some daemon running still performing the forwarding.

Someone said that my NAT is not redirecting because the DNS is not working anymore. But I have no idea what to do, and what could be the best tool fitted for it. I have tried socat in order to redirect socket, but with no luck.

So do you have any strategy on how I could perform it. I know this is possible because when I unplug my Ethernet cable, I can't access to internet anymore but the URL are still forwarded for at least 10 minutes. So if there is a simple an hackish way to to it, you'll be welcome. My intention are those: someone connect to the hostapd (without internet connection), enter any URL, and then redirected to my server.