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 (“#”) 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.
The database in
/var/db/services.db needs to be updated with
services_mkdb(8) after changes to the services file have been applied.