1.檢視目前連接配接IP位址:
[root@centos69 ~]# netstat -nat
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN
tcp 0 0 192.168.1.200:22 192.168.1.162:52265 ESTABLISHED
tcp 0 0 :::22 :::* LISTEN
tcp 0 0 ::1:25 :::* LISTEN
2.檢視80端口連接配接數
netstat -nat|grep -i '80'|wc -l
3.檢視目前連接配接狀态數量如LISTEN /ESTABLISHED /tcp
netstat -na|grep LISTEN|wc -l
4.檢視連接配接IP
netstat -na|grep ESTABLISHED|awk '{print $5}'|awk -F: '{print $1}'
5.netstat --help使用方法
本文轉自 一招拜師 51CTO部落格,原文連結:http://blog.51cto.com/sadoc/1932028