services(4)                     TCP/IP R4.11                     services(4)


NAME
       services - service name database

DESCRIPTION
       The services file contains information about the known services
       available in the DARPA Internet.  For each service, a single line
       with the following information should be present:

           name port/protocol [aliases] [# comment ]

Items are separated by any number of blanks and/or tab characters.  The port
number and protocol name are considered a single item ; a slash (/)
separates the port number and protocol name (e.g., 512/tcp).

Use only decimal numbers to specify port numbers in /etc/services.  Ports
1-1023 are reserved by DG/UX for system servers to listen for incoming
connections from other machines.  Other ports in the range 1024 to 2**16-1
are available for user-implemented services.

If you specify an alias, you may refer to the service by that name rather
than the official service name.  A # indicates the beginning of a comment;
characters up to the end of the line are not interpreted by routines that
search the file.

Names in the services file may contain any printable character other than a
field delimiter (blanks, tabs, CR, ESC), New Line, or comment character.

If your system uses Network Information Service (NIS), see Managing ONC
(Trademark)/NFS® and Its Facilities on the DG/UX (Trademark) System for
details.

EXAMPLES
       ftp 21/tcp
       telnet 23/tcp

FILES
       /etc/services

SEE ALSO
       getservent(3N), protocols(4).


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