SERVICES(4) File Formats and Configurations SERVICES(4)
services - Internet services and aliases
SYNOPSIS /etc/inet/services /etc/services
file is a local source of information regarding each
service available through the Internet. The services
file can be used in
conjunction with or instead of other services sources, including the NIS
map "services.byname". Programs use the getservbyname(3SOCKET)
to access this information.
file contains an entry for each service. Each entry has the
form: service-name port
/protocol aliases service-name
This is the official Internet service name. port
This field is composed of the port number and protocol
through which the service is provided, for instance, 512/tcp
This is a list of alternate names by which the service
might be requested.
Fields can be separated by any number of SPACE
number sign (#
) indicates the beginning of a comment; any characters that
follow the comment character up to the end of the line are not
interpreted by routines which search the file.
Service names may contain any printable character other than a field
delimiter, a NEWLINE
, or a comment character.
Any changes to a port assignment do not affect the actual port
registration of the service.
configuration file for name-service switch
SEE ALSO getservbyname(3SOCKET)
is the official SVR4 name of the services
symbolic link /etc/services
exists for BSD
February 25, 2017 SERVICES(4)