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Running Two Instances of Bitcoin on the Same Linux Machine with Different Conf Files

When working with multiple instances of Bitcoin, it’s essential to have a separate configuration file for each instance. In this article, we’ll guide you through the process of running two instances of Bitcoin on your Linux machine using different configurations.

Understanding the Structure

Bitcoin has three main configurations:

  • bitcoin.conf: The global configuration file.

  • bitcoin.conf.d/instance_name.conf: A local configuration file specific to each instance (e.g., bitcoin.conf.d/my_instance_name.conf).

To run two instances with different configurations, you’ll need to create separate directories for each instance and copy their respective configuration files into these directories.

Step 1: Create Separate Directories

Create a new directory for each instance:

mkdir -p /path/to/bitcoin-instance1/


mkdir -p /path/to/bitcoin-instance2/

Step 2: Copy Configuration Files

Copy the bitcoin.conf file into the respective directories for each instance. You can do this by running the following commands:

sudo cp /path/to/bitcoin-bitcoin.conf /path/to/bitcoin-instance1/bitcoin.conf


sudo cp /path/to/bitcoin-bitcoin.conf /path/to/bitcoin-instance2/bitcoin.conf

Step 3: Update Configuration Files

Ethereum: How do I run two instances of bitcoind on the same linux machine with different conf files?

Update each instance’s configuration file to use the new directories:

sudo nano /path/to/bitcoin-instance1/bitcoin.conf


sudo nano /path/to/bitcoin-instance2/bitcoin.conf

In these files, update the datadir and dbDir settings to point to your desired directories:

  • datadir: specifies the directory where Bitcoin stores its data. You can use a relative path or an absolute path.

  • dbDir: specifies the directory where Bitcoin stores its database.

Here are some examples:


/path/to/bitcoin-instance1/bitcoin.conf


[general]


datadir=/path/to/bitcoin-instance1/data


dbDir=/path/to/bitcoin-instance1/db





/path/to/bitcoin-instance2/bitcoin.conf


[general]


datadir=/path/to/bitcoin-instance2/data


dbDir=/path/to/bitcoin-instance2/db

Step 4: Restart Bitcoin

Restart both instances to apply the new configuration files:

sudo service bitcoin-daemon restart


sudo service bitcoin-qt restart

Alternatively, you can start Bitcoin manually using bitcoind with the -config option. For example:

./bitcoin-qt -config /path/to/bitcoin-instance1/bitcoin.conf

Troubleshooting

If one instance is not starting correctly, try restarting both instances and checking the logs for any errors.

By following these steps, you should be able to run two instances of Bitcoin on your Linux machine with different configurations. Remember to update your configuration files regularly to ensure that each instance remains in sync.