.\"	$OpenBSD: domainname.1,v 1.18 2012/05/27 07:10:15 jmc Exp $
.\"	$NetBSD: domainname.1,v 1.7 1995/07/25 19:36:57 jtc Exp $
.\"
.\" Copyright (c) 1983, 1988, 1990, 1993
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.\"	@(#)hostname.1	8.1 (Berkeley) 5/31/93
.\"
.Dd $Mdocdate: May 27 2012 $
.Dt DOMAINNAME 1
.Os
.Sh NAME
.Nm domainname
.Nd set or print YP domain of current host system
.Sh SYNOPSIS
.Nm domainname
.Op Ar name-of-domain
.Sh DESCRIPTION
The
.Nm
utility prints the YP domain name of the current host.
The superuser can set the domain name by supplying a
.Pa /etc/defaultdomain
file (see
.Xr defaultdomain 5 ) .
This is used at system boot time by
.Xr rc 8
to initialize the domainname.
.Sh SEE ALSO
.Xr hostname 1 ,
.Xr getdomainname 3 ,
.Xr setdomainname 3 ,
.Xr defaultdomain 5 ,
.Xr rc 8 ,
.Xr yp 8
.Sh HISTORY
The
.Nm
utility is derived from the
.Xr hostname 1
utility, which appeared in
.Bx 4.2 .
The
.Nm
utility appeared in
.Nx 0.8 .