I'm currently running a bitcoin full node and would like to run the omni full node as well separately. I want to have 2 different datadir and I guess I need the omni full node to use a different port (from 8333) but i'm not sure which one to choose? Is there some rules for port?

What about the 8332 port for RPC communications. Do I need to change it for omni also?


You can specify the rpcport in your bitcoin.conf. You should only need to change it for either Bitcoin or Omni, not for both.

As for selecting a port number, it's largely arbitrary. Just make sure it's not being used by another program on the machine. Additionally, if you choose a port below <= 1024, you will need super user access to run the program, so I would suggest picking something higher.

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