Linux网络监控指令netstat
监控网络状态
基本语法:
netstat [选项]
选项说明:
-an: 按照一定的属性排列输出-p: 显示哪个进程在调用
示例:
[root@hxlinux ~]# netstat -anp
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 1789/cupsd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 2121/master
tcp 0 0 127.0.0.1:6010 0.0.0.0:* LISTEN 2872/sshd: root@pts
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1/systemd
tcp 0 0 192.168.122.1:53 0.0.0.0:* LISTEN 2791/dnsmasq
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1786/sshd
tcp 0 0 192.168.213.66:22 192.168.213.1:51955 ESTABLISHED 2872/sshd: root@pts
tcp6 0 0 ::1:631 :::* LISTEN 1789/cupsd
tcp6 0 0 ::1:25 :::* LISTEN 2121/master
tcp6 0 0 ::1:6010 :::* LISTEN 2872/sshd: root@pts
tcp6 0 0 :::111 :::* LISTEN 1/systemd
tcp6 0 0 :::22 :::* LISTEN 1786/sshd
| 说明 |
|---|
 |
如何理解Foreign Address呢?
| ##container## |
|---|
 |
示例
查看指定服务名称的服务信息
(不就是过滤嘛qwq)
[root@hxlinux ~]# netstat -anp | grep ssh
tcp 0 0 127.0.0.1:6010 0.0.0.0:* LISTEN 2872/sshd: root@pts
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1786/sshd
tcp 0 0 192.168.213.66:22 192.168.213.1:51955 ESTABLISHED 2872/sshd: root@pts
tcp6 0 0 ::1:6010 :::* LISTEN 2872/sshd: root@pts
tcp6 0 0 :::22 :::* LISTEN 1786/sshd
unix 2 [ ] DGRAM 38947 2872/sshd: root@pts
unix 3 [ ] STREAM CONNECTED 19067 1786/sshd
