Given a TCP/UDP port number, how do I find out the name of the service bound to that port?
I want to do this on various flavours of Unix. Mostly Gnu/Linux (usually Debian) and Mac OS X.
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@MariusMatutiae Various UNIX. Mostly Gnu/Linux (usually Debian) & Mac OS X.– voicesSep 24, 2015 at 7:20
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You might want to think about rewording your question. Asking for tools/software is off-topic. If you can change the question to something like "How do I do xyz" it will be better ...– DavidPostill ♦Sep 24, 2015 at 9:35
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@DavidPostill You're right, it's pretty rough; I was a bit sleep deprived and in a rush at the time. If you'd like to make some changes, you're more than welcome to.– voicesSep 25, 2015 at 1:18
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I've made some edits to your question so it doesn't look like you are asking for a tool/software recoomendation. Please review the edits to make sure that your question is still the same question you wanted to ask.– DavidPostill ♦Sep 25, 2015 at 6:49
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@DavidPostill I'm sure it's fine. Full disclosure (just to be clear & perfectly honest) though; I was looking for a tool recommendation.– voicesSep 25, 2015 at 7:10
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1 Answer
On Linux that's
ss -lntp
ss -lnup
for TCP and UDP, respectively. l stands for listening, p returns the process number that's listening on the port, and n is my pet peeve, it does not convert IP addresses into names.
On Mac OS you may use the following command, which also works on Linux:
lsof -n -i4TCP:$PORT | grep LISTEN
i4 specifies that you are using IPv4, the rest should be self-explanatory.
You can also use (on Linux)
netstat -pntl | grep $PORT
but netstat is by now obsolete, or
fuser -n tcp $PORT
which is not. That's as far as I go.
answered Sep 24, 2015 at 7:11
