Self-Taught System Administrator

The main tasks of system administration are outlined, basic protocols are described, and recommendations for selecting equipment and conducting daily routine operations are provided. Technologies used in building information systems are discussed in detail, and monitoring and maintenance tools for both small and distributed networks are described. Methods of centralized management and the foundations of creating a secure environment are considered. Recommendations for troubleshooting and ensuring data protection are given. Solutions based on Windows and Linux operating systems are also examined, utilizing both proprietary and open technologies. The book is written based on many years of experience in the development and practical administration of information systems. In the 7th edition, all material has been updated for Windows Server 2022 (Russian version), and additionally, the firewall ufw, the monit utility, and virtualization using KVM are discussed. For beginner system administrators.