A sudden traffic spike on a Linux server can indicate a DDoS (Distributed Denial-of-Service) attack. Knowing how to detect DDoS traffic quickly helps prevent downtime, performance loss, and service disruption. During a DDoS attack, multiple IP addresses send massive amounts of traffic to your server, overwhelming system resources such as CPU, memory, or network bandwidth. This guide explains how to check if your server is under attack using built-in Linux commands. What Is a DDoS Attack? A Distributed Denial-of-Service attack occurs when attackers use multiple compromised systems to flood a …
