TCP/UDP 网络工具

1. 统计连接状态

netstat -n | awk '/^tcp/ {++State[$NF]} END {for(s in State) print s, State[s]}'
CLOSE_WAIT
ESTABLISHED
SYN_SENT 

https://www.infoq.cn/article/linux-networking-performance-analytics

https://blog.csdn.net/shixin_0125/article/details/78686152