Monitoring is an important activity in daily local area network maintance routine. To be able to run the network efficiently and without incidents that run into problems, networks must be monitored. This way it is possible to detect and remove serious problems at early stages. Various techniques are employed, including monitoring and checking users actions, data traffic, active running processes, open ports and system log analysis. This thesis describes a method for engineering and implementing local area networks software and using it for field data analysis. In the process of writing this thesis such sample of software was created and aimed at the processes and event logs of Kaunas University of Technology Software Engineering Department. In the conclusion methods and ways that will help solve current problems were suggested. Most alarming thing to notice was constant port scans and illegal attempts to log into the system without permission.