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Ethereum: How to install bitcoind (Bitcoin Core) on Ubuntu?

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Installing Bitcoind on Ubuntu

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Bitcoind is the official client for Bitcoin Core, a decentralized peer-to-peer network that enables fast, secure, and open financial transactions without the need for intermediaries like banks. Installing bitcoind on Ubuntu provides a full command-line-only node, allowing you to manage your own Bitcoin private key, verify transactions, and mine new blocks.

Step 1: Update your package index

Before installing bitcoind, make sure your package index is up to date:

sudo apt update

Step 2: Install Bitcoind

Download the latest bitcoind package from the Ubuntu repository or install it from source. For this example, we’ll use the apt package manager.

sudo apt-get update

sudo apt-get install -y bitcoin-core

If you prefer to install from source:

git clone

cd bitcoin-core

./configure --prefix=/usr/local

make

sudo make install

Step 3: Verify the installation

To verify that bitcoind was installed correctly, check the version of Bitcoin Core you are using:

bitcoind --version

This command should display the version number.

Step 4: Test your node

To test your full node, perform the following steps:

  • Create a new Bitcoin address: Run the getaddrinfo command to get information about your public and private addresses:

getaddrinfo -p 443

This will display both your public and private addresses.

  • Verify transactions: Use the txlist command to verify that you are receiving a new block of transactions, indicating that the network is functioning properly:

txlist --address=your_public_address

Replace your_public_address with your actual Bitcoin address.

  • Mine a coin (optional): If you want to mine a new block of coins using bitcoind, use the following command:

bitcoind -q -v

This will prompt you for your password before starting the mining process.

Step 5: Verify your wallet

After installing bitcoind and verifying that everything is working properly, you should verify your wallet to make sure that your private key is accessible:

  • Get your seed phrase: Run the getseed command to retrieve your seed phrase:

getseed --full

This will display a 12-word seed phrase.

  • Check your balance: Use the balance command to check your current balance:

bitcoind --wallet-getaddress 0x[Your seed phrase]

Replace [Your seed phrase] with the actual 12-word seed phrase you retrieved in Step 1.

Conclusion

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If you followed these steps, you should have installed bitcoind on Ubuntu and verified that it is working properly. You can now use the full node to manage your Bitcoin private key, verify transactions, and mine new blocks, all from your own command-line interface.

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