Bitcoin: What is the proper configuration and command to run bitcoincore and use RPC over LAN?

Setting Up Bitcoin Core and Remote Procedure Call (RPC) Over a Local Area Network

As you set up your Bitcoin node on a small computer, you are taking a significant step towards a decentralized cryptocurrency ecosystem. In this article, we will walk you through the proper configuration and commands to run Bitcoin Core and enable Remote Procedure Calls (RPC) for remote access within your LAN.

Prerequisites

• Bitcoin Node running Bitcoin Core 0.15.3 or later

• Ethernet connection on your small computer

• IP address of your computer

Step-by-Step Guide

1. Install Bitcoin Core

First, download and install Bitcoin Core from the official repository: [ (version 0.15.3 or later)

Follow the installation instructions for your operating system:

• Ubuntu/Debian: sudo apt-get install bitcoin-qt

• Fedora/CentOS/RHEL: sudo dnf install bitcoin-qt

• Arch Linux: sudo pacman -S bitcoin-qt

2. Start Bitcoin Core

Start the Bitcoin Node by running:

bitcoin-qt

This will start the node and start listening for incoming connections.

3. Configure RPC settings

To enable Remote Procedure Calls (RPC) on the node, you need to configure a few settings:

• rpcuser: Specify a username for the node.

• rpcpassword: Enter a password for the node.

• rpcport: Set the port number on which the node will listen.

For example:

bitcoin-qt
> rpcset
rpcuser=myusername
rpcpassword=mypassword
rpcport=55555
bitcoin-qt (version 0.15.3)

4. Start the RPC server

After configuring the RPC settings, start the RPC server by running:

bitcoin-qt -rpcport=55555

This will start the RPC server and begin listening for incoming connections from the LAN.

Using RPC to Access the Node

To access the node remotely using RPC, you need to do the following:

• Get a Bitcoin Address

  : You can get a Bitcoin address by running:

bitcoincli getaddresslist

Choose a new address and save it to a file (e.g. “myaddress.txt”).

• Use the RPC URL

  

  : The node’s RPC URL is

• If you want to use a specific port for RPC connections, you can specify it in thebitcoin-qtcommand:

bitcoin-qt -rpcport=8080

• You can set multiple RPC users and passwords with the -rpcusersoption:

bitcoin-qt -rpcuser=username -rpcpassword=mypassword -rpcport=55555

Remember to replace ` with the IP address of your actual computer.

By following these steps, you can set up a Bitcoin Node on your small computer and enable Remote Procedure Calls (RPC) for remote access within your LAN. Happy mining!

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