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I'm running a MeteorJS app on localhost:3000. I'd like to allow other computers connected to my network access to view the app by visiting my IP address. Any ideas on how I can do this?

EDIT: I'm running Ubuntu 12.10, and I've also installed nmap, in case that's helpful.

EDIT 2: I've tried opening the port 3000 up, but I'm given an error saying it's already busy.

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up vote 3 down vote accepted

So I solved my problem. It had to do with the firewall. The command to make the port accessible on the local network ip (192.168 etc.) was: sudo ufw allow [port-number].

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