netstat -ant |awk ‘/:80/{split($5,ip,”:”);++A[ip[1]]}END{for(i in A) print A[i],i}’ |sort -rn
netstat -n | awk ‘/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}’
网络吞吐量查询
watch -n 1 “/sbin/ifconfig eth0 | grep bytes”
数据包抓取
tcpdump -n -nn -vv -XX -tttt -e -c 10
linux下常用命令netstat，watch，tcpdump