Is it possible to run two Lightning Network nodes on top of single Bitcoin Core node?

Question

I would like to simultaneously run LND and Eclair nodes on top of single Bitcoin Core bitcoind node. Is it possible? I wasn't been able to pull it off so far.

If possible, how to set up ZMQ and listen-tcp?

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Thanks Rene, I have managed to do it. Works flawlessly. :)

Listen addresses must be different, eg. 0.0.0.0:9735 and 0.0.0.0:9736, and both need to be open in router. Also rpclisten must be different, eg: 127.0.0.1:10009 and 127.0.0.1:10019

When opening channel between them use localhost address, eg. 03di28did92d2dh92d29d229d299239r98398r@127.0.0.1:9736

Answer 1

Technically it should be possible. You can find a pretty straight forward description in the lnd docs at: https://dev.lightning.community/tutorial/01-lncli/index.html

I am running several c-lightning nodes on top of the one Bitcoin node that I'm running. In clightning you just have to specify a different data directory and port for each node. Also on this machine I have an lnd node running.

I could give you examples how to do this with c Lightning but you asked for lnd / eclair. As said I don't see any reason why it would not work with the other implementations but I have not checked it yet. This referring you to their documentation.