I am trying to get all the processes listening for a network connection on Mac OS X. netstat
does not have the -p
option and I am trying with lsof
lsof -i -sTCP:LISTEN
gives me a fair list of listening processes but not all. I can for example telnet to port 10080 where I have a process listening for a connection but this is not shown in the output of lsof
. What am I missing?
$ telnet localhost 10080
Trying ::1...
Connected to localhost.
Escape character is '^]'.
^]
telnet> Connection closed.
but
$ sudo lsof -n -i | grep 10080
$
Best Answer
All return the same 32 entries (
... | wc -l
) on my heavily used Lion MBP.-P -n
preventslsof
from doing name resolution, and it doesn't block. Missing either one of these, it can be very slow.For UDP:
sudo lsof -iUDP -P -n | egrep -v '(127|::1)'
. Without-n
and-P
, it takes a long time.Reminder: This does not include firewall settings.