SERVICES(4) File Formats and Configurations SERVICES(4)


NAME


services - Internet services and aliases

SYNOPSIS


/etc/inet/services


/etc/services


DESCRIPTION


The 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) routines
to access this information.


The services 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/protocol
This field is composed of the port number and protocol
through which the service is provided, for instance,
512/tcp.


aliases
This is a list of alternate names by which the service
might be requested.


Fields can be separated by any number of SPACE and/or TAB characters. A
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.

FILES


/etc/nsswitch.conf
configuration file for name-service switch


SEE ALSO


getservbyname(3SOCKET), inetd.conf(4), nsswitch.conf(4)

NOTES


/etc/inet/services is the official SVR4 name of the services file. The
symbolic link /etc/services exists for BSD compatibility.


February 25, 2017 SERVICES(4)