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freebsd/gnu/usr.bin/yppush/yppush.8
Bill Paul 714f0adda1 Wrote manual page for yppush and edited Makefile to install it.
Added conditional definition for _PATH_YP in yppush.c in case _PATH_YP
isn't defined anywhere else.
1995-02-05 21:48:04 +00:00

116 lines
4.0 KiB
Groff

.\" Copyright (c) 1991, 1993, 1995
.\" The Regents of the University of California. All rights reserved.
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.\" This product includes software developed by the University of
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.\" $Id$
.\"
.Dd February 5, 1995
.Dt YPPUSH 8
.Os
.Sh NAME
.Nm yppush
.Nd "force propagation of updated NIS databases"
.Sh SYNOPSIS
.Nm yppush
.Op Fl d Ar domain
.Op Fl v
.Ar mapname
.Op Ar mapname ...
.Sh DESCRIPTION
.Nm yppush
distributes updated NIS databases (or
.Pa maps )
from an NIS master server to NIS slave servers within an NIS
domain. It is normally only run on the NIS master by
.Pa /var/yp/Makefile
whenever any of the NIS maps are updated. Note that
.Pa /var/yp/Makefile
does not invoke
.Nm yppush
by default: the
.Nm NOPUSH=True
entry in the Makefile must first be commented out
(the default FreeBSD configuration assumes a small network with only
a single NIS server; in such a configuration,
.Nm yppush
is not needed).
.Pp
.Nm yppush
determines the names of the slave servers for a domain by searching the
.Pa ypservers
map. Once it has a complete list of slave servers, it sends a request
to each of them to initiate a map transfer, which is done using
.Xr ypxfr 8 .
Included within each request is the name of the map to be copied
and some special information required by
.Xr ypxfr 8
to successfully 'callback' to
.Nm yppush
and carry out the transfer. Any status or error messages
.Nm yppush
receives from
.Xr ypxfr 8
will be printed to stdout.
.Sh OPTIONS
The following options are supported by
.Nm yppush :
.Bl -tag -width flag
.It Fl d Ar domain
Specify a particular domain. The NIS domain of
the host system is used by default.
.It Fl v
Verbose mode: causes
.Nm yppush
to print debugging messages as it runs.
.Sh FILES
.Bl -tag -width Pa -compact
.It Pa /var/yp/[domainname]/ypservers
The NIS ypservers map containing the names of all servers in
a particular NIS domain.
.El
.Sh SEE ALSO
.Xr ypserv 8 ,
.Xr ypxfr 8 ,
.Xr yp 8
.Sh BUGS
The mechanism for transfering NIS maps in NIS version 1 is different
that that in NIS version 2. This version of
.Nm yppush
has support for transfering maps to NIS version 1 systems, but this
support has not been tested and is not guaranteed to work. Fortunately,
the majority of systems today use NIS version 2.
.Sh LICENSE
This program is covered by the GNU Public License version 2.
.Sh AUTHOR
Tobias Reber (original Linux version)
.br
Bill Paul <wpaul@ctr.columbia.edu> (port to FreeBSD and various
changes)