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20 Linux System Monitoring Tools Every SysAdmin Should Know

http://www.cyberciti.biz/tips/top-linux-monitoring-tools.html

#1: top – Process Activity Command
#2: vmstat – System Activity, Hardware and System Information
#3: w – Find Out Who Is Logged on And What They Are Doing
#4: uptime – Tell How Long The System Has Been Running
#5: ps – Displays The Processes
#6: free – Memory Usage
#7: iostat – Average CPU Load, Disk Activity
#8: sar – Collect and Report System Activity
#9: mpstat – Multiprocessor Usage
#10: pmap – Process Memory Usage
#11 and #12: netstat and ss – Network Statistics
#13: iptraf – Real-time Network Statistics
#14: tcpdump – Detailed Network Traffic Analysis
#15: strace – System Calls
#16: /Proc file system – Various Kernel Statistics
17#: Nagios – Server And Network Monitoring
18#: Cacti – Web-based Monitoring Tool
#19: KDE System Guard – Real-time Systems Reporting and Graphing
#20: Gnome System Monitor – Real-time Systems Reporting and Graphing

待续～～

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