Ethereum: Bitcoin Core Connection Issue
As a developer or user of the Ethereum blockchain, it is essential to ensure that your connections to the network are secure and functioning correctly. In this article, we’ll tackle an issue that may arise when connecting to the Ethereum network using Bitcoin Core (BTC-C) on Linux.
The Problem: Incorrect RPC User/Password
The error message you are receiving indicates that there is an authorization failure due to an incorrect RPCUser or RPCPassword. This can happen if your username and password do not match the ones used when installing BTC-C. Let’s address this issue step by step:
Step 1: Review Your Installation
Before proceeding, verify that you have installed BTC-C correctly using the following command:
Sudo Apt-Get Update && Sudo Apt-Get Install Bitcoin-Core
If you did not use apt-get or if the installation failed, please try again.
Step 2: Check Your Username and Password
In your case, you mentioned that the host system is Linux Debian Stretch (9/x testing). Make sure you’ve created a file with the correct permissions for your username. Create a new file in /home/myUsername/.bitcoinrc or add it to the end of an existing ~/.bitcoin.conf file:
sweat nano ~/.bitcoinrc
Add the following lines, substituting your actual username and password:
rpcuser=myUsername
rpcpassword=myPassword
Replace myUsername and myPassword with your desired credentials.
Step 3: Verify Your Configuration
After updating your configuration file, restart BTC-C:
sudo systemctl restart bitcoin-core
Now, try connecting to the Ethereum network using BTC-C. Open a terminal, navigate to the /home/myUsername/Downloads directory (replace ~ with your actual username):
cd /home/myUsername/Downloads
Run the following command:
bitcoin-cli getmininginfo --version
You should display the version of BTC-C installed on your system. If you’re still experiencing issues, try resetting your configuration file or updating BTC-C to the latest version.
Example Use Cases:
- Create a new wallet by running
sudo bitcoin-qt --wallet-directory=/home/myUsername/.bitcoin-wallet
- Test your connection using
bitcoin-cli getbalance
- Try connecting to the Ethereum network using `
If you encounter any further issues or have concerns, please provide more details about the error message or your environment.