I currently run a lightning node on umbrel on a raspberry pi. I want to experiment with c-lightning and want to run a new c-lightning node on my ubuntu laptop which utilizes the blockchain data from my existing umbrel node.

Which files do I need to configure for that and in doing that do I reduce my umbrel node's security in any way?

Thanks in advance.

1 Answer 1


You need to put the following in your conf file and have Bitcoin Core installed on your Ubuntu machine too.


Core Lightning will use the bitcoin-cli to make a connection with your bitcoind on the other machine!

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