Ubuntu

Important Note A Nano node stores the entire ledger of transactions. While the Nano team is experimenting with pruning (removing historical data to reduce disk space), the primary way to manage storage for a Nano node is by ensuring you have enough space available on your SSD-based hard drive. Current Storage Requirements Principal Representative Nodes (more than 0.1% of online voting weight): Require 400GB+ of free space on an SSD. …

Hardening an Ubuntu server is a critical practice to protect any infrastructure exposed to the internet. Below are key steps to strengthen security, including a summary table of each configuration and its effect. 🔐 Step 1: Create a secure user and use SSH keys Disabling direct access to the root user and using a limited user with SSH keys improves traceability and removes one of the most common attack vectors. …