services(5) [freebsd man page]

SERVICES(5)						      BSD File Formats Manual						       SERVICES(5)

NAME

     services -- service name data base

DESCRIPTION

     The services file contains information regarding the known services available in the 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 (e.g. ``512/tcp'').  A ``#'' indicates the beginning of a comment; subsequent characters up to the
     end of the line are not interpreted by the routines which search the file.

     Service names may contain any printable character other than a field delimiter, newline, or comment character.

     If ``db'' is specified as source in the nsswitch.conf(5), /var/db/services.db is searched.  The database in /var/db/services.db needs to be
     updated with services_mkdb(8) after changes to the services file have been applied.

NIS INTERACTION

     Access to the NIS services.byname map can be enabled by adding a single ``+'' on a line by itself in the /etc/services file.  This causes the
     contents of the NIS services map to be inserted at the location where the ``+'' appears.

FILES

     /etc/services  The services file resides in /etc.

SEE ALSO

     getservent(3), nsswitch.conf(5), services_mkdb(8)

HISTORY

     The services file format appeared in 4.2BSD.

BUGS

     A name server should be used instead of a static file.

BSD
								   April 4, 2010							       BSD

services(4)							   File Formats 						       services(4)

NAME

       services - Internet services and aliases

SYNOPSIS

       /etc/inet/services

       /etc/services

DESCRIPTION

       The services file  is a local source of information regarding each service available through the Internet. The services file can be used in
       conjunction with or instead of other services sources, including the NIS maps "services.byname" and the NIS+  table  "services."   Programs
       use the getservbyname(3SOCKET) routines to access this information.

       The services file contains an entry for each service. Each entry has the form:

       service-name   port/protocol   aliases

       service-name	       This is the official Internet service name.

       port/protocol	       This  field  is	composed  of  the  port  number  and protocol through which the service is provided, for instance,
			       512/tcp.

       aliases		       This is a list of alternate names by which the service might be requested.

       Fields can be separated by any number of SPACE and/or TAB characters. A number sign (#) indicates the beginning of a comment;  any  charac-
       ters that follow the comment character up to the end of the line are not interpreted by routines which search the file.

       Service names may contain any printable character other than a field delimiter, a NEWLINE, or a comment character.

       Any changes to a port assignment do not affect the actual port registration of the service.

FILES

       /etc/nsswitch.conf      configuration file for name-service switch

SEE ALSO

       getservbyname(3SOCKET), inetd.conf(4), nsswitch.conf(4)

NOTES

       /etc/inet/services is the official SVR4 name of the services file.  The symbolic link /etc/services exists for BSD compatibility.

SunOS 5.10							    12 Oct 2000 						       services(4)