Linux netstat使用_linux netstat -ant-优快云博客

本文链接：https://blog.youkuaiyun.com/wteruiycbqqvwt/article/details/89397847

在命令提示符中输入“netstat -a”命令，可显示所有网络连接和侦听端口

netstat -a

Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       
tcp        0      0 localhost.localdomain:5037 0.0.0.0:*               LISTEN      
tcp        0      0 0.0.0.0:50000           0.0.0.0:*               LISTEN      
tcp        0      0 0.0.0.0:ftp             0.0.0.0:*               LISTEN      
tcp        0      0 192.168.1.1:domain      0.0.0.0:*               LISTEN      
tcp        0      0 localhost.localdomain:17824 0.0.0.0:*               LISTEN      
tcp        0      0 192.168.1.1:7777        0.0.0.0:*               LISTEN      
tcp        0      0 192.168.1.1:58055       192.168.1.10:28888      ESTABLISHED 
tcp        0      0 192.168.1.1:43779       192.168.1.10:28889      ESTABLISHED 
tcp        0      0 fe80::405c:69ff:fee1:cfc2:domain :::*                    LISTEN      
udp        0      0 192.168.1.1:domain      0.0.0.0:*                           
udp        0      0 0.0.0.0:bootps          0.0.0.0:*                           
udp        0      0 192.168.1.1:7755        0.0.0.0:*                           
udp        0      0 192.168.1.1:7755        0.0.0.0:*                           
udp        0      0 0.0.0.0:50000           0.0.0.0:*                           
udp        0      0 fe80::405c:69ff:fee1:cfc2:domain :::*                                
raw    21120      0 :::58                   :::*                    58          
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags       Type       State         I-Node Path
unix  17     [ ]         DGRAM                      8231 /dev/log

在命令提示符窗口中输入“netstat -n”命令，可显示已创建的有效连接，并以数字的形式显示本地地址和端口号。
在命令提示符窗口中输入“netstat -e”命令，可显示关于以太网的统计数据，包括传送的字节数、数据包、错误等。

~ # netstat -e
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       
tcp        0      0 192.168.1.1:58055       192.168.1.10:28888      ESTABLISHED 
tcp        0      0 192.168.1.1:43779       192.168.1.10:28889      ESTABLISHED
Active UNIX domain sockets (w/o servers)
Proto RefCnt Flags       Type       State         I-Node Path
unix  17     [ ]         DGRAM                      8231 /dev/log

在命令提示符窗口中输入“netstat -r”命令，可显示关于路由表的信息，还显示当前的有效连接。

netstat -r

Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
192.168.1.0     *               255.255.255.0   U         0 0          0 bridge0
~ # 


~ # netstat -alt
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       
tcp        0      0 localhost.localdomain:5037 0.0.0.0:*               LISTEN      
tcp        0      0 0.0.0.0:50000           0.0.0.0:*               LISTEN      
tcp        0      0 0.0.0.0:ftp             0.0.0.0:*               LISTEN      
tcp        0      0 192.168.1.1:domain      0.0.0.0:*               LISTEN      
tcp        0      0 localhost.localdomain:17824 0.0.0.0:*               LISTEN      
tcp        0      0 192.168.1.1:7777        0.0.0.0:*               LISTEN      
tcp        0      0 192.168.1.1:58055       192.168.1.10:28888      ESTABLISHED 
tcp        0      0 192.168.1.1:43779       192.168.1.10:28889      ESTABLISHED 
tcp        0      0 fe80::405c:69ff:fee1:cfc2:domain :::*                    LISTEN      
~ # 
~ # netstat -lnt
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       
tcp        0      0 127.0.0.1:5037          0.0.0.0:*               LISTEN      
tcp        0      0 0.0.0.0:50000           0.0.0.0:*               LISTEN      
tcp        0      0 0.0.0.0:21              0.0.0.0:*               LISTEN      
tcp        0      0 192.168.1.1:53          0.0.0.0:*               LISTEN      
tcp        0      0 127.0.0.1:17824         0.0.0.0:*               LISTEN      
tcp        0      0 192.168.1.1:7777        0.0.0.0:*               LISTEN      
tcp        0      0 fe80::405c:69ff:fee1:cfc2:53 :::*                    LISTEN      
~ # 
~ # 
~ # 
~ # netstat -ant
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       
tcp        0      0 127.0.0.1:5037          0.0.0.0:*               LISTEN      
tcp        0      0 0.0.0.0:50000           0.0.0.0:*               LISTEN      
tcp        0      0 0.0.0.0:21              0.0.0.0:*               LISTEN      
tcp        0      0 192.168.1.1:53          0.0.0.0:*               LISTEN      
tcp        0      0 127.0.0.1:17824         0.0.0.0:*               LISTEN      
tcp        0      0 192.168.1.1:7777        0.0.0.0:*               LISTEN      
tcp        0      0 192.168.1.1:58055       192.168.1.10:28888      ESTABLISHED 
tcp        0      0 192.168.1.1:43779       192.168.1.10:28889      ESTABLISHED 
tcp        0      0 fe80::405c:69ff:fee1:cfc2:53 :::*                    LISTEN      
~ #