service name database
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 slash
/’) is used to separate the port and
protocol (e.g., “512/tcp”).
A hash mark (‘
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.
services file format appeared in
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.