"Running a c-lightning node previously has required a “clear” net address (ipv4 / ipv6) to connect to other nodes. This has certain privacy implications. As a result, one may would prefer to rent a VPS to run their node on in order to not expose their home IP address.
c-lightning has support for Tor, so a user can run their node behind Tor and even generate a .onion address for others to connect to to open channels — all at home and without exposing the user’s home IP address.
To run your c-lightning node over Tor, it takes four fairly basic steps..."