nätverkshärdning

Nätverkshärdning, or network hardening in English, refers to the process of securing a computer network by reducing its attack surface. This involves a series of steps and configurations designed to eliminate vulnerabilities and protect against potential threats. The primary goal is to make the network more resilient to intrusions and misuse.

Key aspects of network hardening include disabling unnecessary services and ports, implementing strong authentication mechanisms, and regularly updating software and firmware. Firewalls are a crucial component, acting as a barrier to filter incoming and outgoing network traffic based on predefined security rules. Intrusion detection and prevention systems (IDPS) are also commonly employed to monitor network activity for suspicious patterns and respond accordingly.

Furthermore, network segmentation, where the network is divided into smaller, isolated zones, can limit the impact of a security breach. Access control lists (ACLs) are used to define which users or devices are allowed to access specific network resources. Regular security audits and vulnerability assessments are essential to identify and address weaknesses before they can be exploited. Proper configuration management and the principle of least privilege, granting users only the necessary permissions, are fundamental to effective network hardening.