Zeek on Ubuntu 26.04 with maintenance support by pCloudHosting

Zeek is an open-source network security monitoring (NSM) platform designed to provide comprehensive visibility into network activity. It passively analyzes network traffic and generates detailed logs about connections, protocols, files, and security-related events, helping organizations monitor, investigate, and respond to potential threats.

Unlike traditional intrusion detection systems, Zeek acts as a powerful network analysis framework that allows security teams to inspect application-layer protocols, detect suspicious behavior, and create custom detection policies using its flexible scripting language. It supports a wide range of protocols, including HTTP, DNS, SSL/TLS, SMTP, SSH, FTP, and more.

Zeek is widely used by enterprises, research institutions, government agencies, and security operations centers (SOCs) for threat hunting, incident response, compliance monitoring, and forensic investigations. Its scalable architecture enables deployment in environments ranging from small networks to large, high-speed enterprise infrastructures.

With extensive logging capabilities, integration support for SIEM platforms, and a rich ecosystem of community-developed packages, Zeek provides security professionals with actionable insights into network behavior and helps strengthen an organization's overall cybersecurity posture.