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I am new to Docker. I have a sample website running in a Docker Container and I am trying to access it from another computer on the network.

tcp        0      0 localhost:3000          0.0.0.0:*               LISTEN      14184/docker-proxy

I tried to add sudo iptables -I INPUT -p tcp --dport 3000 -j ACCEPT but the iptables don't seem to update. I have forwarded port 3000 on my router to the rasperry pi's IP, and I use that to ssh in, so I know that works.

What am I missing?

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  • Docker is only listening for connections from localhost - to expose the port externally, the app will need to bind to 0.0.0.0:3000. That is usually set in your webserver config rather than via iptables
    – Cpt.Whale
    Commented Jan 17 at 18:02

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