213.55.175.138

• At least 1 TB SSD (SATA or NVMe), 8 GB RAM
• Stable internet connection (upload 20+ Mbit/s), 24/7 power supply
• Compact computer (e.g., Mini PC) or retired desktop
• Example products (external links):
  • Raspberry Pi 5 (8 GB)
  • Case with space for NVMe heatsink & active cooling
  • SSD Adapter (NVMe heatsink)
  • SSD 2 TB
  • Power supply for Raspberry Pi 5

1. Install a current version of Debian/Ubuntu.
2. Update packages: sudo apt update && sudo apt upgrade
3. Create a dedicated user: sudo adduser bitcoin

1. Download the latest release from bitcoincore.org and verify the signatures.
2. Install bitcoin-qt/bitcoind and place the data directory on the SSD.
3. Add the following to bitcoin.conf:

server=1
daemon=1
txindex=1
rpcallowip=127.0.0.1
maxconnections=64

1. Start bitcoind and open port 8333/TCP in your firewall.
2. Allow incoming connections on your router (port forwarding).
3. Plan for several days for initial synchronization; SSD + broadband shorten the time.

• Keep the OS and Bitcoin Core updated; automate security updates
• Use a UPS to protect against unplanned power outages
• Limit SSH access (Fail2ban, SSH key login, no password login)

• Monitor logs with journald or a centralized log collector
• Track uptime and latency (e.g., with Prometheus/Grafana) and set alerts
• Check block height and mempool regularly to detect sync issues early