https://gemini.google.com/share/ef5ee9c9b31a Yes, you can use ufw (Uncomplicated Firewall) to block IP addresses from China. However, directly adding thousands of individual IP ranges to ufw is not the most efficient method and can be quite slow and resource-intensive. A better approach is to use ipset, a tool designed to manage large sets of IP addresses, and then create a single ufw rule that references that set. […]
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