The development of computer networks is gaining momentum. There are new challenges to data security and the end users themselves. With the advent of the Internet of Things, this problem has become quite acute for network engineers and cyber analysts. Increasingly, there are illegal actions to interfere with the work of the network itself and the use of users' devices for criminal purposes. Various distributed attacks, SQL injections and identity theft are becoming more complex. Given the growing infrastructure of both the network and IoT devices, there is a need to protect them. Especially when it comes to the computer network of a higher education institution. Where little attention is usually paid to full infrastructure protection, and with the integration of IoT devices, such possible gaps can occur quite a lot. This article attempts to reveal theoretical approaches to the design and implementation of a computer network of higher education institutions, which in recent years are increasingly beginning to suffer from outside interference. Possible attacks on the infrastructure of higher education institutions are analyzed, as well as the possibility of attack and interference in the work of IoT devices based on the killer chain approach. Internet The possibility of using a web application firewall and appropriate software for security and incident management at the L5-L7 OSI level is considered in such networks. Preliminary testing of the network for the ability to respond to L3-L4 level attacks using standard firewall capabilities. And with the response to interventions at the upper levels of the OSI L5-L7 model, namely: SQL injections, distributed DDoS, bot-net attacks. The results are summarized and further directions of research are determined, which are based on the improvement of the group security policy for the higher education institution. Development of security infrastructure for IoT devices and the ability to respond quickly to non-standard attacks.

Rapid growth of information technologies causes the changes in many production processes. The effectiveness of elec-trotechnical means of infrared radiation is due to the application of new, scientifically grounded methods and means of energy supply control using controllers and personal computers, new information technologies and systems.Therefore, there is a need for further mathematical models development as well as information technology used in deci-sion support systems on infrared grain drying from elevators and granaries.Research and publication analysis on information support questions of grain drying based on infrared radiation technol-ogy has shown that the issues of information support systems are currently underexplored in scientific literature.The goal of this research is mathematical modeling of the IR grain drying process and information support development of the drying process, taking into account the obtained mathematical model.The improved model of the infrared drying process for grain crops is proposed, which, in contrast to the existing ones, is focused on application in decision support systems when organizing the drying process. The results of the experiments proved that infrared radiation use contributes to the intensification of the grain drying process due to a significant heat flux rate increasing on the material’s irradiated surface and the of infrared rays’ penetration into material. It has been proved that modern information technology, rational schemes and operating parameters of infrared grain drying processes utilization will reduce dehydration time with "gentle" drying modes to ensure the required quality parameters of the product.In this work it was first proposed to abandon probabilistic models of grain flow behavior under IR irradiation. A new mathematical model has been proposed based on information about the characteristics of the heat flow, dehydration and grain mass’ condition. This will significantly improve the IR grain drying process and get a higher quality product

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