被打开的端口谁（哪个进程）在监听？ （Detect service of opened port）
- Ubuntu
netstat -lnput
结果如下：
(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 (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN - tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN - tcp 0 0 0.0.0.0:1723 0.0.0.0:* LISTEN - tcp 0 0 127.0.0.1:12580 0.0.0.0:* LISTEN 8123/adb tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN - tcp 0 0 127.0.0.1:5037 0.0.0.0:* LISTEN 8123/adb tcp6 0 0 :::80 :::* LISTEN - tcp6 0 0 :::22 :::* LISTEN - tcp6 0 0 ::1:631 :::* LISTEN - tcp6 0 0 :::50313 :::* LISTEN 5479/eclipse udp 0 0 0.0.0.0:38968 0.0.0.0:* - udp 0 0 0.0.0.0:68 0.0.0.0:* - udp 0 0 0.0.0.0:5353 0.0.0.0:* -
解释：
-l, --listening
Show only listening sockets. (These are omitted by default.)
-n, --numeric
Show numerical addresses instead of trying to determine symbolic host, port or user names.
-p, --program
Show the PID and name of the program to which each socket belongs.
-u, --udp
-t, --tcp
netstat -a | find "LISTENING"
结果如下所示：
TCP hostname:epmap hostname:0 LISTENING TCP hostname:microsoft-ds hostname:0 LISTENING TCP hostname:10110 hostname:0 LISTENING TCP hostname:netbios-ssn hostname:0 LISTENING
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