檢視http的併發請求數與其TCP連線狀態

[root@new-web7 ~ 17:39:55]#netstat -na | awk '/^tcp/ {++S[$NF]} END {for(i in S) print i, S[i]}'
TIME_WAIT 3460
FIN_WAIT1 17
FIN_WAIT2 6
ESTABLISHED 430
LAST_ACK 24
LISTEN 18