Hi, @brody,

I have a problem while setting up nginx proxy manager.
I deployed proxy and get the following error.

100.64.0.2 - - [23/May/2025:00:02:41 +0000] "GET / HTTP/1.1" 502 559 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36" "45.58.143.214"

2025/05/23 00:02:41 [error] 23#23: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 100.64.0.2, server: app-server, request: "GET / HTTP/1.1", upstream: "http://[fd12:6a89:ec02::66:da68:8a52]:5173/", host: "pacific-nurturing-staging.up.railway.app"

100.64.0.2 - - [23/May/2025:00:02:42 +0000] "GET /favicon.ico HTTP/1.1" 502 559 "https://pacific-nurturing-staging.up.railway.app/"; "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36" "45.58.143.214"

2025/05/23 00:02:42 [error] 23#23: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 100.64.0.2, server: app-server, request: "GET /favicon.ico HTTP/1.1", upstream: "http://[fd12:6a89:ec02::66:da68:8a52]:5173/favicon.ico", host: "pacific-nurturing-staging.up.railway.app", referrer: "https://pacific-nurturing-staging.up.railway.app/";

2025/05/23 00:02:45 [error] 23#23: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 100.64.0.2, server: app-server, request: "GET / HTTP/1.1", upstream: "http://[fd12:6a89:ec02::66:da68:8a52]:5173/", host: "pacific-nurturing-staging.up.railway.app"

100.64.0.2 - - [23/May/2025:00:02:45 +0000] "GET / HTTP/1.1" 502 559 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36" "45.58.143.214"

100.64.0.2 - - [23/May/2025:00:02:46 +0000] "GET /favicon.ico HTTP/1.1" 502 559 "https://pacific-nurturing-staging.up.railway.app/"; "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36" "45.58.143.214"

2025/05/23 00:02:46 [error] 23#23: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 100.64.0.2, server: app-server, request: "GET /favicon.ico HTTP/1.1", upstream: "http://[fd12:6a89:ec02::66:da68:8a52]:5173/favicon.ico", host: "pacific-nurturing-staging.up.railway.app", referrer: "https://pacific-nurturing-staging.up.railway.app/";

My proxy conf is: (app-v2 is another container)

map $http_upgrade $connection_upgrade {
    default upgrade;
    '' close;
}

server {
    listen 80;
    server_name app-server;

    location / {
        proxy_pass http://app-v2.railway.internal:5173;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_connect_timeout       60;
        proxy_next_upstream         error timeout invalid_header http_500 http_502 http_503 http_504;
        proxy_next_upstream_timeout 5s;
        client_max_body_size 50M;
    }

    brotli on;
    brotli_comp_level 4;
    brotli_types text/html text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript application/javascript;
}