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Measures to enhance a cloud-based smart farm management system were proposed to improve its efficiency and maintenance. The existing system had achieved efficiency and stability by utilizing a web-based operating program with a general-purpose microcomputer and Linux. However, this system faced issues with synchronization and maintenance while concurrent tasks were being performed. Synchronization issues were solved by implementing an embedded DB, and the system was upgraded to allow over-the-air (OTA) software updates. Additionally, a method was also proposed to enable remote maintenance using tunneling. It was determined that applying the proposed method can contribute to the widespread adoption of smart farms, in addition to reducing maintenance costs. Furthermore, this system can also be expanded into a universal system applicable to different service models in the future.