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services(5) [mojave 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 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 (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. INTERACTION WITH DIRECTORY SERVICES
Processes generally find service records using one of the getservent(3) family of functions, or using getaddrinfo(3). On Mac OS X, these functions interact with the DirectoryService(8) daemon, which reads the /etc/services file as well as searching other directory information services to determine service name, protocol, and port information. FILES
/etc/services SEE ALSO
getservent(3), getaddrinfo(3), DirectoryService(8) HISTORY
The services file format appeared in 4.2BSD. 4.2 Berkeley Distribution June 5, 1993 4.2 Berkeley Distribution

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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

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