services —
service name database
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 slash
(‘
/’) is used to separate the port and
protocol (e.g., “512/tcp”).
A hash mark (‘
#’) 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.
- /etc/services
-
getservent(3)
The
services file format appeared in
4.2BSD.
A name server should be used instead of a static file. Lines in
/etc/services are limited to
BUFSIZ characters (currently 1024). Longer
lines will be ignored.
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