Service names

[James Allen]

Can anyone tell me how service names are matched to port numbers?

[kalareddy]

Can anyone tell me how service names are matched to port numbers?

here is a list of port details ...

The ports that are popular are those in the range 0–1023. On Unix-like operating systems, opening a port in this range to receive incoming connections requires administrative privileges, although this all might change.
The Registered Ports are those in the range 1024–49151.
The Dynamic and/or Private Ports are those in the range 49152–65535. These ports are not used by any defined application.


List of TCP and UDP port numbers - Wikipedia, the free encyclopedia

[JohnDoe]

The best you could ever do on a local machine, is maybe find out what program is listenening on what port. Not that this necessarily gives you any idea what type of service that program implements.

As for a remote machine, a person can run whater service they want on whatever port they want. They can implement secret prococols that no one else knows about and run those on all their ports.

So there really is no concrete mapping that exists. Just educated guesses or so I'm led to believe.