linux HTTP TCP连接数统计

netstat -n | awk '/^tcp/ {++state[$NF]} END {for(key in state) print key,"\t",state[key]}'

查看当前每个IP的连接数、TCP连接状态、统计IP数、总的连接数：
netstat -n | awk '/^tcp/ {n=split($(NF-1),array,":");if(n<=2)++S[array[(1)]];else++S[array[(4)]];++s[$NF];++N} END {for(a in S){printf("%-20s %s\n", a, S[a]);++I}printf("%-20s %s\n","TOTAL_IP",I);for(a in s) printf("%-20s %s\n", a, s[a]);printf("%-20s %s\n","TOTAL_LINK",N);}'
 

 

或者ss -s