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時(shí)間:2014-12-30 15:59:47 作者:qipeng 來(lái)源:系統(tǒng)之家 1. 掃描二維碼隨時(shí)看資訊 2. 請(qǐng)使用手機(jī)瀏覽器訪問(wèn): https://m.xitongzhijia.net/xtjc/20141230/33733.html 手機(jī)查看 評(píng)論 反饋
實(shí)例15:查看連接某服務(wù)端口最多的的IP地址
命令:netstat -nat | grep “192.168.120.20:16067” |awk ‘{print $5}’|awk -F: ‘{print $4}’|sort|uniq -c|sort -nr|head -20
輸出:
代碼如下:
。踨oot@andy ~]# netstat -nat | grep “192.168.120.20:16067” |awk ‘{print $5}’|awk -F: ‘{print $4}’|sort|uniq -c|sort -nr|head -20
8 10.2.1.68
7 192.168.119.13
6 192.168.119.201
6 192.168.119.20
6 192.168.119.10
4 10.2.1.199
3 10.2.1.207
2 192.168.120.20
2 192.168.120.15
2 192.168.119.197
2 192.168.119.11
2 10.2.1.206
2 10.2.1.203
2 10.2.1.189
2 10.2.1.173
1 192.168.120.18
1 192.168.119.19
1 10.2.2.227
1 10.2.2.138
1 10.2.1.208
。踨oot@andy ~]#
實(shí)例16:找出程序運(yùn)行的端口
命令:netstat -ap | grep ssh
輸出:
代碼如下:
[root@andy ~]# netstat -ap | grep ssh
tcp 0 0 *:ssh *:* LISTEN 2570/sshd
tcp 0 0 ::ffff:192.168.120.206:ssh ::ffff:10.2.1.205:54508 ESTABLISHED 13883/14
tcp 0 0 ::ffff:192.168.120.206:ssh ::ffff:10.2.0.68:62886 ESTABLISHED 20900/6
tcp 0 0 ::ffff:192.168.120.206:ssh ::ffff:10.2.2.131:52730 ESTABLISHED 20285/sshd: root@no
unix 2 [ ACC ] STREAM LISTENING 194494461 20900/6 /tmp/ssh-cXIJj20900/agent.20900
unix 3 [ ] STREAM CONNECTED 194307443 20285/sshd: root@no
unix 3 [ ] STREAM CONNECTED 194307441 20285/sshd: root@no
。踨oot@andy ~]#
實(shí)例17:在 netstat 輸出中顯示 PID 和進(jìn)程名稱
命令:netstat -pt
輸出:
代碼如下:
[root@localhost ~]# netstat -pt
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 248 192.168.120.204:ssh 10.2.0.68:62420 ESTABLISHED 15725/0
。踨oot@localhost ~]#
說(shuō)明:
netstat -p 可以與其它開(kāi)關(guān)一起使用,就可以添加 “PID/進(jìn)程名稱” 到 netstat 輸出中,這樣 debugging 的時(shí)候可以很方便的發(fā)現(xiàn)特定端口運(yùn)行的程序。
實(shí)例18:找出運(yùn)行在指定端口的進(jìn)程
命令:netstat -anpt | grep ‘:16064’
輸出:
代碼如下:
[root@andy ~]# netstat -anpt | grep ‘:16064’
tcp 0 0 :::16064 :::* LISTEN 24594/java
tcp 0 0 ::ffff:192.168.120.20:16064 ::ffff:192.168.119.201:6462 ESTABLISHED 24594/java
tcp 0 0 ::ffff:192.168.120.20:16064 ::ffff:192.168.119.20:26341 ESTABLISHED 24594/java
tcp 0 0 ::ffff:192.168.120.20:16064 ::ffff:192.168.119.20:32208 ESTABLISHED 24594/java
tcp 0 0 ::ffff:192.168.120.20:16064 ::ffff:192.168.119.20:32207 ESTABLISHED 24594/java
tcp 0 0 ::ffff:192.168.120.20:16064 ::ffff:10.2.1.68:51303 ESTABLISHED 24594/java
tcp 0 0 ::ffff:192.168.120.20:16064 ::ffff:10.2.1.68:51302 ESTABLISHED 24594/java
tcp 0 0 ::ffff:192.168.120.20:16064 ::ffff:10.2.1.68:50020 ESTABLISHED 24594/java
tcp 0 0 ::ffff:192.168.120.20:16064 ::ffff:10.2.1.68:50019 ESTABLISHED 24594/java
tcp 0 0 ::ffff:192.168.120.20:16064 ::ffff:10.2.1.68:56155 ESTABLISHED 24594/java
tcp 0 0 ::ffff:192.168.120.20:16064 ::ffff:10.2.1.68:50681 ESTABLISHED 24594/java
tcp 0 0 ::ffff:192.168.120.20:16064 ::ffff:10.2.1.68:50680 ESTABLISHED 24594/java
tcp 0 0 ::ffff:192.168.120.20:16064 ::ffff:10.2.1.68:52136 ESTABLISHED 24594/java
tcp 0 0 ::ffff:192.168.120.20:16064 ::ffff:10.2.1.68:56989 ESTABLISHED 24594/java
tcp 0 0 ::ffff:192.168.120.20:16064 ::ffff:10.2.1.68:56988 ESTABLISHED 24594/java
。踨oot@andy ~]#
說(shuō)明:
運(yùn)行在端口16064的進(jìn)程id為24596,再通過(guò)ps命令就可以找到具體的應(yīng)用程序了。
上面就是Linux中netstat命令的用法介紹了,netstat命令還可顯示與ip協(xié)議相關(guān)的數(shù)據(jù),檢測(cè)端口的網(wǎng)絡(luò)連接狀態(tài)。
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