How do I find out what network services are running or listing under Linux?
Q. How do I find out what network service are running under Linux operating system?
A. For security reason it is necessary to find out what services are running. With the help of netstat command, you can print information about the Linux networking subsystem including running services. It can display program name and PID for each socket belongs to. Use netstat as follows:
$ netstat -atup
OR
$ netstat -atup | grep LISTEN
Where,
- -t : Select all TCP services
- -u : Select all UDP services
- -a : Display all listening and non-listening sockets.
- -p : Display the PID and name of the program to which each socket belongs
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Tags: display open port, Linux, linux networking subsystem, list open port, netstat command, operating system, pid, security reason, service list, sockets, tcp services, udp services
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