services(5)
NAME
services − service name data base
DESCRIPTION
The services file contains information regarding the known services available in the DARPA Internet. For each service, a single line should be present with the following information:
official service name
port number
protocol name
aliases
Items are separated by any number of blanks and/or tab characters. The port number and protocol name are considered a single item; a “/” is used to separate the port and protocol (for example, “512/tcp”). A “#” indicates the beginning of a comment; characters up to the end of the line are not interpreted by routines that search the file.
Service names may contain any printable character other than a field delimiter, newline, or comment character.
FILES
/etc/services