xref: /netbsd-src/share/man/man5/services.5 (revision 18b582acb098079ba173a2d06aad407540d07a83)

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.\"     @(#)services.5	8.1 (Berkeley) 6/5/93
.\"
.Dd February 12, 2023
.Dt SERVICES 5
.Os
.Sh NAME
.Nm services
.Nd service name data base
.Sh DESCRIPTION
The
.Nm services
file contains information regarding
the known services available in the
.Tn DARPA
Internet.
For each service a single line should be present
with the following information:
.Bd -unfilled -offset indent
official service name
port number
protocol name
aliases
.Ed
.Pp
Items are separated by any number of blanks and/or
tab characters.
The port number and protocol name are considered a single
.Em item ;
a slash
.Pq Ql /
is used to separate the port and protocol
.Pq e.g. Ql 512/tcp .
A hash
.Pq Ql #
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.
.Pp
Service names may contain any printable character other than a
field delimiter, newline, or comment character.
.Pp
The database in
.Pa /var/db/services.cdb
needs to be updated with
.Xr services_mkdb 8
after changes to the services file have been applied.
.Sh FILES
.Bl -tag -width Pa -compact
.It Pa /etc/services
The current services file.
.It Pa /var/db/services.cdb
The current services database.
.El
.Sh SEE ALSO
.Xr getservent 3 ,
.Xr services_mkdb 8
.Sh HISTORY
The
.Nm
file format appeared in
.Bx 4.2 .
.Sh BUGS
A name server should be used instead of a static file.