Recommended CentOS Stream 8 system monitoring tool
CentOS Stream 8 provides a variety of monitoring tools to meet different monitoring needs. This article recommends several commonly used tools and briefly introduces their functions:
System performance monitoring
- top: Displays the usage of system process resources in real time, and is the most commonly used performance monitoring tool in Linux systems.
- htop: The enhanced version of the
topcommand provides a more intuitive interface and interactive functions, and supports mouse operation. - vmstat: Reports information on virtual memory, processes, CPU activities, etc., and is used to monitor the overall performance of the system.
- iostat: Monitors the usage of system I/O devices, which is especially suitable for analyzing storage device performance.
- free: Check the system memory usage, including physical memory, swap memory and cache.
- sar: Collect, view and record system performance data, which can be used for long-term performance analysis.
Network monitoring
- iftop: Monitor network traffic in real time and visually display network traffic.
- tcpdump: Packet capture tool for network traffic analysis and problem diagnosis.
- nmcli: NetworkManager command line interface for managing network connections and device status.
- netstat: Display network connections, routing tables, interface statistics and other information to understand system network activities.
- ss: Displays socket statistics, faster than
netstat, and is used to view TCP and UDP port usage.
Comprehensive monitoring
- Monitorix: Open source system monitoring tool, providing visual display of system indicators (such as CPU, memory, disk I/O, etc.).
Choosing the right monitoring tool depends on your specific needs. The above tools can effectively monitor and manage CentOS Stream 8 systems.
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