Questions tagged [ports]

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PORT ERROR!! Set up a Private Ethereum instance with Geth on MacOS

Hello I am trying to set up a private ethereum instance with geth on MacOS I have a startnode.sh file using ATOM But every time I try to start the node with "./startnode.sh", the http access account ...
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Parity: Change port 30304?

If I want to change the discovery port from 30303 to XXXX I do "parity -port XXXX". But what if I want to change 30304/udp? For example, maybe I have many computers NAT behind a firewall. I can do ...
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Port 30304/udp? Or is it 30301/udp?

I'm drawing a blank on a simple thing. I remember that I need to have 30303 open on tcp and udp for the listening and discovery. And I seem to remember that you need 30304/udp open. But I'm not ...