Is there any way not to use port 80

[hk05418]

Must port 80 be used? After changing the port, it won't take effect. If the port is not changed, the block information can be obtained. But after the change, the block information cannot be obtained and can only be obtained through port 80

After the modification, the acquisition of block information failed

[ekawibisono]

hello @hk05418 , please ask to discord tech https://discord.gg/blockscout

[Turkchain1919]

Blockscout’s Docker proxy container communicates internally with backend & frontend only through port 80.

👉 Therefore:

❗ You MUST NOT change target: 80

If you change it:

Wallet login gets stuck

Backend API fails

Blocks stop loading

You get 500 / 501 errors

Auth0 integration breaks

✔ The correct solution

Keep the internal port = 80,
Expose external port = 443.

Correct Docker mapping:

ports:

• target: 80
  published: 443

target (inside container) → always 80

published (external host port) → 443, or any other port you want

💡 Why does this work with your Nginx config?

Because your external reverse proxy defines:

server {
listen 443 ssl;
server_name xxxxxxx.com;
}

This:

Handles HTTPS

Routes backend paths (/api, /socket, /auth/...)

Routes frontend (/)

Routes stats + visualizer services

Then Nginx forwards traffic to the container’s internal port 80:

proxy_pass ${BACK_PROXY_PASS};
proxy_pass ${FRONT_PROXY_PASS};

So external users reach 443 → Nginx → Blockscout container → port 80.