Contribution to Safer Internet for Children at School

The article focuses on the development of a methodology with the intention of increasing the level of network infrastructure and student safety in the Internet environment at primary and secondary schools. Considering the recently adopted European Directive NIS2, the authors try to provide practical solutions for these schools, which have limited financial and human resources. The article deals with the assessment of the current state, proposing improvements and expansion of the infrastructure with an emphasis on cyber security. The article documents the implementation of selected technological solutions and the results achieved. In the article, the authors summarize the creation of the necessary instructions and materials for IT administrators at schools and recommendations for the use of technical means with open software and simply sustainable hardware. Technical tools include Pi-Hole for filtering inappropriate content on the Internet, OPNsense for blocking unauthorized network connections and monitoring network activity, Wazuh for detecting and responding to security threats on end devices, and more. The overall goal is to contribute to strengthening the security of networks and information systems in educational institutions in accordance with current as well as new expected legislative requirements in the field of cyber security.