TCP *:hbci (LISTEN) - What does hbci mean?
Does anyone know what hbci means or refers to?
HBCI stands for "Home Banking Computer Interface", see http://openhbci.sourceforge.net/. The same port number is also used by the "RemoteWare Client
", at least according to http://www.networksorcery.com/enp/protocol/ip/ports03000.htm.
The reason you are seeing it is because netstat
and similar utilities look up port numbers in a database that maps them to symbolic names (usually, /etc/services
).
To suppress this behavior in netstat
, one can pass the --numeric-ports
option, or just -n
which also makes some other things numeric.
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G.S
Updated on September 18, 2022Comments
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G.S almost 2 years
I simply open an http server from my terminal (with node) listening on port 3000, which is obviously working if I request localhost:3000 in a browser.
Now, I want to see this connection so I use
netstat
.
I'm supposed to see server connection on port 3000, and client connection on another port:$ netstat -p tcp Proto Recv-Q Send-Q Local Address Foreign Address (state) tcp6 0 0 localhost.hbci localhost.50215 ESTABLISHED tcp6 0 0 localhost.50215 localhost.hbci ESTABLISHED tcp6 0 0 localhost.hbci localhost.50214 ESTABLISHED tcp6 0 0 localhost.50214 localhost.hbci ESTABLISHED tcp6 0 0 localhost.hbci localhost.50213 ESTABLISHED tcp6 0 0 localhost.50213 localhost.hbci ESTABLISHED tcp6 0 0 localhost.hbci localhost.50211 ESTABLISHED tcp6 0 0 localhost.hbci localhost.50212 ESTABLISHED tcp6 0 0 localhost.50212 localhost.hbci ESTABLISHED tcp6 0 0 localhost.50211 localhost.hbci ESTABLISHED tcp6 0 0 localhost.hbci localhost.50210 ESTABLISHED tcp6 0 0 localhost.50210 localhost.hbci ESTABLISHED
No entries about the server connection on port 3000. But the localhost.hbci, switching from a local to a foreign address, seems to be my server connection. And if I type:
$ lsof -i TCP:3000 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME node 1144 garysounigo 11u IPv6 0x6d9a12e1e288efc7 0t0 TCP *:hbci (LISTEN)
I'm sure that hbci represent my port 3000.
Does anyone know something about what hbci means or refers to?
Is it a port for local server ? A protocol for s local connection?
I find anythings everywhere ( on any port.. ;) )-
dave_thompson_085 over 7 yearsNote
netstat
by default does not display TCP (including TCP6) sockets in LISTEN state; to see them add-a
to any version, or-l
(ell) to the version usually used on Linux as your tags say but I believe not OSX as your text says. (lsof
does include LISTEN, as you see.) -
G-Man Says 'Reinstate Monica' over 6 years
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G.S over 7 yearsAmaaazing .. You are right !! Actually I think -- option are not available in OSX and dont find the equivalent - for numeric ports option for netstats in OSX. BUUUT for lsof its juts -P so with
lsof -P -i TCP:3000
you gave meTCP *:3000 (LISTEN)
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G.S over 7 yearsOne last, do you the meaning difference between
*:3000
andlocalhost:3000
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Jeff Schaller over 7 yearsMore canonically: iana.org/assignments/service-names-port-numbers/…
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dave_thompson_085 over 7 years@G;S:
*:port
is usable only for LISTEN state and means accept connections on any address and thus any interface.localhost:port
or127.0.0.1:port
or::1:port
or possibly[::1]:port
in LISTEN means accept on the loopback address/interface only but in other states simply means that connection is using the loopback address/interface. Seeman ip
. -
G.S over 7 years@dave_thompson_085 Thanks a lot; im a newbie but already see the lo network interface. This interface is used to intern service connections if i remember well