Article Directory
2.13 System Management
System Administration Concepts
System management refers to the activities of managing and maintaining computer systems, including the management of hardware devices, operating systems, software applications, and networks. Systems administration aims to ensure the stability, security, and efficiency of computer systems to meet the needs of users and organizations.
System administrator
A system administrator is a professional responsible for system administration. The responsibilities of system administrators include installing and configuring operating systems, managing users and user groups, maintaining hardware devices, monitoring system performance, handling failures and security events, and formulating backup and recovery strategies.
system log
Syslog is a log file that records system events and activities. System logs record important information about operating systems, applications, and network devices, such as error messages, warnings, operating status, and security events. System administrators can monitor system running status and troubleshoot by analyzing system logs.
System Backup and Recovery
System backup is the process of copying the data and configuration files of a computer system to another storage medium to prevent data loss and system failure. System administrators regularly perform system backups and formulate corresponding backup strategies and plans. System recovery is the process of restoring backup data to the system in case of system failure or data loss, so as to restore the normal operation of the system.
safety management
Security management is an important task to protect computer systems and data from unauthorized access, malicious attacks and data leakage. Security management includes setting access controls and permissions, updating security patches, monitoring network activities, configuring firewalls and intrusion detection systems, and implementing encryption and authentication to ensure system security.
Performance Monitoring and Optimization
Performance monitoring is the process of real-time monitoring and analysis of computer system performance. System administrators use performance monitoring tools to collect and analyze system resource usage, such as CPU utilization, memory usage, disk read and write speed, and network traffic. By optimizing system performance, system response speed and resource utilization efficiency can be improved.
Update and upgrade management
Operating system and application updates and upgrades are important tasks of system administration. Updates and upgrades fix bugs and errors in the software, provide new features and improve performance. System administrators are responsible for monitoring the availability of updates and upgrades and scheduling when and how they are performed appropriately.
Summarize
System administration involves managing and maintaining all aspects of computer systems to ensure system stability, security, and efficiency. System administrators are responsible for performing system administration tasks such as installing and configuring operating systems, maintaining hardware devices, handling failures and security events, and more. System administration also includes log management, backup and recovery, security management, performance monitoring and optimization, and update and upgrade management. Through effective system management, the normal operation and security of computer systems can be guaranteed, and the work efficiency and reliability of users and organizations can be improved.