Questions tagged [ports]

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How to force geth to use ipv4 instead of ipv6

I'm trying to configure geth on Redhat7 and facing an issue while connecting nodes from the two servers. There are three validator nodes on each machines and ports(30303, 30304, 30305) are allowed. ...
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Why does fabdep keep asking to open port 111 even if it is open?

Trying to set up a hyperledger fabric blockchain with fabdep but it seems to not work and I'm stuck on an error saying that port 111 is closed and not open. PLAY [127.0.0.1] ***************************...
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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 ...