SYN floods have been around forever, and they’re still a major threat in Linux server security, especially for hosting providers and cPanel users. The trick is simple: attackers blast your server with a ton of TCP SYN packets, but never finish the TCP handshake. Your server ends up stuck, waiting on connections that never really start, eating up memory and connection slots until everything slows to a crawl—or just crashes. For web hosts, server administrators,  and anyone running cPanel or other control panels, this means slow sites, broken services, and, …