Análisis y evaluación de protocolos de comunicación en sistemas de video vigilancia en zonas remotas para garantizar disponibilidad del servicio.

Abstract

In this degree work, an analysis of communication protocols in video surveillance systems for remote areas that guarantee the availability of the service constantly was carried out. To perform a complete analysis, the Nessus tool was used, which reflects network vulnerabilities that compromise the availability of the service, being tested using OWASP as a verification standard with the application of a DDoS attack and Cobit5 as an implementation design tester. Similarly, in addition to analyzing the laser camera as the main component, the radio frequency (RF) equipment was also examined, since it is a remote environment and long-range RF links are used; the main findings were: default keys, enabled ports, enabled auto-detection service, power availability, evidencing the need to increase perimeter security. Therefore, the video surveillance system was hardened using an open-source firewall (OPNsense) for IP filtering, mainly mitigating denial of service. In addition, the joint work of the firewall and the video surveillance monitoring of the electrical system identified power availability failures, which increased operating availability by improving the battery bank system to 95%. This concludes that the use of a firewall as perimeter security plus the joint work with the video surveillance reduces the operating vulnerabilities, thus offering a 7.71% increase in availability. An increase of backup to the battery bank is recommended since it provides more operating time for the firewall to detect failures and have an immediate response without leaving the laser camera inactive.