How to know PID responsible for network connection/listen?
chuckr at chuckr.org
Sat Nov 17 17:55:05 PST 2007
Tino Engel wrote:
> Matthias Apitz schrieb:
>> El día Thursday, November 15, 2007 a las 11:20:30AM -0800, Yuri escribió:
>>> 'netstat -a' gives me the listing of network connection/listening
>>> But there's no link to the process id that opened it.
>>> With lots of processes this can be a significant problem to figure
>>> out who
>>> opened which connection.
>> For example, for the port 25 you see it with:
>> # lsof -P | fgrep :25
>> sendmail 6462 root 3u IPv4 0xc5c3ecb0 0t0 TCP
>> localhost:25 (LISTEN)
>> i.e. the PID is 6462
> ps -Al show the parent PID of each process.
I just moved from Linux, where the netstat does supply the info you're
asking, and it took me a little time to find out that sockstat is where
the info is, in FreeBSD.
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