Update 30-7-2023 – This post is a bit old. I have written a new article on the subject. Check it out here: https://www.ustoopia.nl/featured/block-countries-based-on-geo-data-with-ufw-firewall/ I was noticing some really strange requests in my web server’s log files on a VPS that I manage. Requests that seem to be focused on finding vulnerabilities or exploits. Turns out, most of the originating IP addresses are from China. Since the VPS is not behind …