UFW

Linux Learning Notes – UFW

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1. What is UFW <span>ufw</span> (Uncomplicated Firewall) is a simplified firewall management tool provided in Ubuntu and some Linux distributions. It is based on <span>iptables</span> / <span>nftables</span>, but wraps a simple and easy-to-use command line interface to help users quickly configure firewall rules (such as opening ports, denying access, limiting access, etc.) without directly manipulating … Read more

Raspberry Pi System Configuration Guide

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Raspberry Pi System Configuration Guide

The Raspberry Pi system is based on the Debian system, so the configuration of the Raspberry Pi system is no different from that of the Debian system. Replace the apt source [^1] # Backup the current apt source cp /etc/apt/sources.list /etc/apt/sources.list.bak # Change to use Aliyun's source cat > /etc/apt/sources.list << EOF deb https://mirrors.aliyun.com/debian/ bookworm … Read more