diff ss and netstat and lsof

关于如何试用ss,netstat, lsof 命令在日常运维中.
个人看法不需要记住所有用法,记住最常用组合+参数意思
 
ss  -tlnp  
ss | head -n 5
ss -tn -o 
ss -nt dst :443 or dst :80  
 
ss -t4 state established
ss -t4 state listening
 
watch -n 1 "ss -t4 state established”
 
-o show live time 
 
Netstat - tlnp | grep port/pid
Netstat -at      #display all tcp
 
-a all 
 
lsof -i :8909
lsof -p pid  #show pid opened files
 
-t tcp
-l listening
-n show ip only, don’t resolve hostname
-p program 

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转载自www.cnblogs.com/toska/p/10374806.html
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