Fast flux, a technique used by cybercriminals to make their online infrastructure more resilient against takedowns by rapidly changing the IP addresses associated with their domain names. The texts detail how this method, often employing botnets, helps malicious actors evade detection and maintain uptime for activities like phishing, malware distribution, and command and control. Different variations of fast flux, such as single flux and double flux, are explained, along with the challenges they pose to network security and law enforcement efforts. Furthermore, the sources discuss methods for detecting and mitigating fast flux, emphasizing the need for proactive measures and advanced security solutions.