The Analysis of Software and Hardware Solutions for Blocking Prohibited Information in Information and Telecommunication Networks

Abstract

The paper conducts a comprehensive analysis of approaches related to the blocking of information in information and telecommunication networks. The features of technical methods of filtering network traffic are shown: blocking by IP address, DNS record distortion processes, URL blocking process, file type blocking process, https request filtering procedures, Packet filtering, HTTP proxy server-based filtering processes, search results filtering processes. The need for content filtering of access to the global network in educational institutions is shown. The mathematical models of categorization used are discussed: the simplest thematic categorization, semantic categorization. It is shown how it is possible to carry out thematic categorization on the basis of calculating the weight coefficients of terms that belong to the category. It is demonstrated how the design and mathematical formalization of the system is carried out.