TCP排查常用命令

1.查看TCP连接状态命令

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

2.kill指定进程命令

kill -9 $(jcmd|grep SJJ|awk '{print $1}')

3.打印TCP的状态信息

netstat -n|awk '/^tcp/ {print $NF}'

4.查看操作系统的keepalive值

sysctl -a|grep keepalive