Blockchain Node Security Hardening on Debian
TL;DR Ensure your system is up-to-date to protect against known vulnerabilities. sudo apt update && sudo apt upgrade -y # Update package lists and upgrade all packages Create a Dedicated User Run your blockchain node under a non-root user to minimize security risks. sudo adduser blockchainuser # Create a new user named 'blockchainuser' sudo usermod -aG sudo blockchainuser # Add 'blockchainuser' to the sudo group Configure Firewall Use UFW to allow only necessary ports. ...
