# Unable to connect to my app **URL:** \ **Category:** Traefik v2\ **Tags:** docker\ **Created:** [June 20, 2023, 10:37am UTC](https://community.traefik.io/t/unable-to-connect-to-my-app/19014 "2023-06-20T10:37:12Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![slewinus](https://sea2.discourse-cdn.com/flex020/user_avatar/community.traefik.io/slewinus/32/7145_2.png) [@slewinus](https://community.traefik.io/u/slewinus)\ **Post date:** [June 20, 2023, 10:37am UTC](https://community.traefik.io/t/unable-to-connect-to-my-app/19014/1 "2023-06-20T10:37:12Z")
Hello, I'm new to docker and traefik. I'm trying to run node red via docker compose. I've added the labels and don't see any errors in the logs but when I try to connect via internet, the page displays : This site can’t be reached ```auto `nodered. ******.fr refused to connect.` `Try:` * `Checking the connection` * `Checking the proxy and the firewall` `ERR_CONNECTION_REFUSED` ``` and I don't understand why. Here is my compose docker for traefik and the one for my nodered : nodered.yml : ```auto `version: '3.8'` `services:` `node-red:` `image: nodered/node-red:latest-12-minimal` `container_name: nodered` `user: root` `labels:` `- "traefik.enable=true"` `- "traefik.http.routers.node.rule=Host(\`nodered.local`)"` `- "traefik.http.routers.node.entrypoints=websecure"` `- "traefik.http.routers.node.tls.certresolver=le"` `networks:` `- network-nodered` `- web` `volumes:` `- ./nodered_data:/data` `restart: unless-stopped` `networks:` `network-nodered:` `web:` `external:` `name: web` ``` traefik. yml : ```auto `version: '3'` `services:` `reverse-proxy:` `image: traefik:v2.9` `container_name: traefik` `ports:` `- "80:80"` `- "443:443"` `- "8080:8080"` `volumes:` `- /var/run/docker.sock:/var/run/docker.sock` `- $PWD/traefik.toml:/etc/traefik/traefik.toml` `- ./acme.json:/acme.json` `restart: always` `networks:` `- web` `networks:` `web:` `external: true` ``` (my firewall ports are open) ---
**Author:** ![bluepuma77](https://avatars.discourse-cdn.com/v4/letter/b/a9adbd/32.png) [@bluepuma77](https://community.traefik.io/u/bluepuma77)\ **Post date:** [June 20, 2023, 12:33pm UTC](https://community.traefik.io/t/unable-to-connect-to-my-app/19014/2 "2023-06-20T12:33:37Z")
You normally can not use a local domain like `nodered.local` with LetsEncrypt, as that domain can not be validated. Share you Traefik static and dynamic config, and `docker-compose.yml` if used. Use 3 backticks in front and after code, or select the code and use the `` button. Check a [simple Traefik example](https://github.com/bluepuma77/traefik-best-practice/tree/main/docker-traefik-dashboard-letsencrypt). ---
**Author:** ![slewinus](https://sea2.discourse-cdn.com/flex020/user_avatar/community.traefik.io/slewinus/32/7145_2.png) [@slewinus](https://community.traefik.io/u/slewinus)\ **Post date:** [June 20, 2023, 7:32pm UTC](https://community.traefik.io/t/unable-to-connect-to-my-app/19014/3 "2023-06-20T19:32:20Z")
Hello, Node red.local was for testing, it's normally noter.\*\*\*.fr. Here is my traefik. toml : ```auto [api] dashboard = true insecure = true [entryPoints] [entryPoints.web] address = ":80" [entryPoints.web.http] [entryPoints.web.http.redirections] [entryPoints.web.http.redirections.entryPoint] to = "websecure" scheme = "https" permanent = true [entryPoints.websecure] address = ":443" [entryPoints.websecure.http.tls] certResolver = "default" [providers] [providers.docker] watch = true exposedByDefault = false network = "web" [certificatesResolvers] [certificatesResolvers.le] [certificatesResolvers.le.acme] email = "contact@superman.com" storage = "acme.json" caServer = "https://acme-v01.api.letsencrypt.org/directory" [certificatesResolvers.le.acme.tlsChallenge] ``` and my docker-compose.yml : ```auto version: '3' services: reverse-proxy: image: traefik:v2.9 container_name: traefik ports: - "80:80" - "443:443" - "8080:8080" volumes: - /var/run/docker.sock:/var/run/docker.sock - $PWD/traefik.toml:/etc/traefik/traefik.toml - ./acme.json:/acme.json restart: always networks: - web networks: web: external: true ``` i also find this error : `traefik | time="2023-06-20T19:25:00Z" level=error msg="Unable to obtain ACME certificate for domains \"nodered.****.fr\": unable to generate a certificate for the domains [nodered.****.fr]: error: one or more domains had a problem:\n[nodered.*****.fr] acme: error: 400 :: urn:ietf:params:acme:error:connection :: 82.***.***.125: Error getting validation data\n" routerName=node@docker rule="Host(`nodered.\*\*\*\*\*.fr`)" providerName=le.acme ACME CA="https://acme-v02.api.letsencrypt.org/directory"` ---
**Author:** ![bluepuma77](https://avatars.discourse-cdn.com/v4/letter/b/a9adbd/32.png) [@bluepuma77](https://community.traefik.io/u/bluepuma77)\ **Post date:** [June 21, 2023, 4:49am UTC](https://community.traefik.io/t/unable-to-connect-to-my-app/19014/4 "2023-06-21T04:49:23Z")
Seems your sub-domain can be resolved to IP, but it can’t be connected to. The IP could be wrong or a firewall is in the way. ---
**Author:** ![slewinus](https://sea2.discourse-cdn.com/flex020/user_avatar/community.traefik.io/slewinus/32/7145_2.png) [@slewinus](https://community.traefik.io/u/slewinus)\ **Post date:** [June 21, 2023, 7:55am UTC](https://community.traefik.io/t/unable-to-connect-to-my-app/19014/5 "2023-06-21T07:55:25Z")
Hello again, I found the error, I had the wrong ip address when creating my subdomain... ---
**Author:** ![system](https://us1.discourse-cdn.com/flex020/uploads/containo/original/2X/b/bd81ebdb578656e76e56ff3cc3eed021d3ba132d.png) [@system](https://community.traefik.io/u/system)\ **Post date:** [June 24, 2023, 7:55am UTC](https://community.traefik.io/t/unable-to-connect-to-my-app/19014/6 "2023-06-24T07:55:35Z")
This topic was automatically closed 3 days after the last reply. New replies are no longer allowed.