Linux System Administration Overview Core commands and best practices for Linux system administration, including system information viewing, resource monitoring, service management, etc. System Information Basic Information Hardware Information Resource Monitoring Real-time Monitoring Historical Data Service Management Systemd Services Common Scenarios Scenario 1: System Health Check Scenario 2: Troubleshoot High Load Troubleshooting | Problem | Commands | |---------|----------| | System lag | , , | | Disk full | , , | | Memory shortage | , | | Service abnormal | , | ---