SERVICES(4)SERVICES(4)NAMEservices - Internet services and aliases
The services file is a local source of information regarding each ser‐
vice available through the Internet. The services file can be used in
conjunction with or instead of other services sources, including the
NIS maps "services.byname" and the NIS+ table "services." Programs use
the getservbyname(3SOCKET) routines to access this information.
The services file contains an entry for each service. Each entry has
service-name port/protocol aliases
This is the official Internet service name.
This field is composed of the port number and protocol
through which the service is provided, for instance,
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 regis‐
tration of the service.
configuration file for name-service switch
SEE ALSOgetservbyname(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.
Oct 12, 2000 SERVICES(4)