Domain Name system course, in this course we delve into the fundamental concepts and practical applications of DNS, the backbone of the internet. This course offers a comprehensive understanding of how DNS works, including its architecture, record types, and configuration options. Participants will explore DNS security best practices, advanced concepts, troubleshooting techniques, and optimization strategies. Through hands-on exercises and real-world examples, learners will gain insights into implementing DNS in enterprise networks, cloud environments, and modern IT infrastructures. Whether you're a novice or an experienced IT professional, this course equips you with the knowledge and skills needed to effectively manage and optimize DNS to ensure the reliability, security, and performance of your network infrastructure.