Running a Bitcoin full node in 2025 requires hardware capable of efficiently handling the network's demands. Here's an overview of the recommended hardware specifications:
1. Hardware Requirements:
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Processor (CPU): A modern multicore processor is recommended. Bitcoin Core's performance benefits from a higher clock speed rather than a higher number of cores. The Intel 4 Core E3v6 3.5GHz CPU is enough for a full Bitcoin node.
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Random Access Memory (RAM): At least 16 GB of RAM is recommended, but the more RAM you have, the better. The memory requirements may increase as the size of the Bitcoin blockchain grows.
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Storage: The Bitcoin blockchain is continuously growing, so you need enough storage space to accommodate it. You should have enough space to store the entire blockchain, with room for future growth. SSD or NVMe drives are recommended for faster synchronization and better performance than an HDD (Hard Disk Drive). At least 1TB SSD/NVMe disk space is recommended, and 2TB is recommended as the Bitcoin blockchain rapidly grows.
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Internet Connection: A high-speed, stable internet connection is essential for keeping your node synchronized with the Bitcoin network. 100 Mbps with a 5 - 10TB bandwidth is fully enough.
2. Software Requirements:
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Operating System: Bitcoin Core, the reference implementation for a Bitcoin full node, is compatible with various operating systems, including Windows, macOS, and Linux. Choose an operating system you are comfortable with and well-supported by Bitcoin Core.
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Bitcoin Core Software: Download and install the latest version of the Bitcoin Core software from the official website ( https://bitcoin.org/en/download ).
3. Security Considerations:
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Firewall Configuration: Ensure that your firewall allows incoming connections to port 8333 (the default port for Bitcoin's peer-to-peer network) to enable your node to connect with other nodes on the Bitcoin network.
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Keep Software Updated: Regularly update your Bitcoin Core software to the latest version to take advantage of security fixes and improvements.
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Secure your Node: You can implement best practices for securing your server, such as using strong passwords, keeping your operating system up-to-date, and using any additional security measures recommended for your specific environment.
Just so you know, these requirements may change over time, so it's essential to check the official Bitcoin Core documentation for the most up-to-date information.