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I'm using user "lightning" to start the daemon, but would like to have user "bitcoin" to make the lightning-cli calls. How do I share the lightning-rpc file to do so?
Thanks! Francois
Sharing the lightning-rpc socket
Answers
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Have the users share a group, and write a wrapper it even a plugin to change the group and permissions on the rpc file. That's the normal Unix way...
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I am not sure if I get your question. So just some general remarks. Lightningd opens as socket and this owns the rpc file. That is why a 2nd lightningd needs a separate data dir and rpc file. However many clients can connect to the socket. For example lightning-cli or other programs you write....
If it is just about use rights you could probably just start lightningd with the Bitcoin user. Or you could assign the rpc file to be member of the same group as the Bitcoin user
I thought that maybe I can set the default group and permissions of the created lightning-rpc file in the config, but writing a wrapper to change it makes sense. Thank you Rusty! – francois – 2019-03-16T21:15:56.267