案例一
$ netstat -ntulap
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.53:53 0.0.0.0:* LISTEN -
tcp 0 0 0.0.0.0:7001 0.0.0.0:* LISTEN 1250/nxnode.bin
tcp 0 0 127.0.0.1:25001 0.0.0.0:* LISTEN 1345/nxrunner.bin
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN -
tcp 0 0 127.0.0.1:3001 0.0.0.0:* LISTEN 1316/pipewire
......（
补充：
1) -n 不解析名称
2) -t 显示 tcp 端口
3) -u 显示 udp 端口
4) -l 显示服务器接口
5) -a 显示所有接口
6) -p 显示 PID 或者程序名称的接口
）
案例二
mingyuzhu@mingyuzhu:~$ netstat -W -neopa
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State User Inode PID/Program name Timer
tcp 0 0 127.0.0.53:53 0.0.0.0:* LISTEN 991 6431 - off (0.00/0/0)
tcp 0 0 0.0.0.0:7001 0.0.0.0:* LISTEN 1001 11218 1250/nxnode.bin off (0.00/0/0)
tcp 0 0 127.0.0.1:25001 0.0.0.0:* LISTEN 1001 11498 1345/nxrunner.bin off (0.00/0/0)
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 0 6018433 - off (0.00/0/0)
tcp 0 0 127.0.0.1:3001 0.0.0.0:* LISTEN 1001 12293 1316/pipewire off (0.00/0/0)
tcp 0 0 0.0.0.0:4000 0.0.0.0:* LISTEN 121 11121 - off (0.00/0/0)
tcp 0 0 127.0.0.1:26001 0.0.0.0:* LISTEN 1001 11426 1250/nxnode.bin off (0.00/0/0)
tcp 0 0 127.0.0.1:26002 0.0.0.0:* LISTEN 1001 6513629 1065010/nxnode.bin off (0.00/0/0)
......（
补充：
1) -W 不缩写 IP 地址
2) -n 不解析名称
3) -e 显示更多的信息
4) -o 显示计时器
5) -p 显示 PID 或者程序名称的接口
6) -a 显示所有接
）