pfiles prints information about all open file descriptors of a process.
If file descriptor corresponds to a file,then pfiles prints the fstat(2)
and fcntl(2) information.

If the file descriptor corresponds to a socket,then pfiles prints socket
related info,such as the socket type,socket family,and protocol family.

In the case of AF_INET and AF_INET6 family of sockets,information about
the peer host is also printed.

for f in $(ps -ex | awk'{print $ 1}’); do echo $ f; pfiles $ f | grep PORTNUM;完成

请切换端口号的PORTNUM。 :)可能是孩子pid，但让你足够接近以识别问题的应用程序。