This book on concepts and technologies for Remote Monitoring Management and Security covers the various aspects of designing a system and network concepts. This book is intended to be a basic reading material to Remote Monitoring Management and Security concepts based on Harmonized Curriculum, Ethiopia. This book is unique because it looks at system administration from this holistic point of view; whereas most other books for System Administration focus on how to monitor one particular product. With experience, however, all System Administration learn that the big-picture monitor and security are largely independent of the platform. This book will change the way you approach your work as a System Administration in Linux and Windows.This book is not about how to monitor or debug a security implementation, essential command in linux and windows for better system and network administration concepts and more are explain in various chapter of the book.