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SERVICES(5)		       File Formats Manual		     SERVICES(5)

NAME
     services -- internet service name and port number data base

DESCRIPTION
     The  services file contains information regarding the known services avail-
     able 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 delim-
     iter, 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 con-
     tents 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.

FreeBSD ports 15.1		 April 29, 2024 		     SERVICES(5)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=services&sektion=5&manpath=FreeBSD+15.1-RELEASE+and+Ports>

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