Description: Session limiting is a security technique used to restrict the number of concurrent sessions a user can establish on a system or application. This measure is fundamental to mitigate Distributed Denial of Service (DDoS) attacks, where an attacker attempts to overwhelm a service with excessive traffic. By limiting the number of sessions, it prevents a single user or a group of malicious users from consuming all server resources, which could lead to service disruption for other legitimate users. This technique is often implemented in various digital infrastructures, including web servers and cloud applications, where a balance between accessibility and security is required. The main features of session limiting include the ability to define specific thresholds for different types of users, the possibility of logging and monitoring active sessions, and the implementation of policies that determine what actions to take when the established limit is reached. In an increasingly threatened digital environment by cyberattacks, session limiting has become an essential tool to protect the integrity and availability of online services.