http://sparrowa7io5pz6ud3ehqzosvepbxbxt2zphmkjsylp2zgxooko23pqd.onion/docs/connect-node.html
For example, if it is running on 192.168.0.10 , add the following lines to bitcoin.conf below the other settings: rpcuser=bitcoin
rpcpassword=yourpassword
[main]
rpcbind=127.0.0.1
rpcbind=192.168.0.10
rpcallowip=127.0.0.1
rpcallowip=192.168.0.0/16 This will allow you to connect to Bitcoin Core from anywhere on your local network using the provided username and password. If you are using testnet, be sure to replace [main] with [test] in the configuration above.