'\" te
.\" Copyright (c) 2000 Sun Microsystems, Inc. All Rights Reserved.
.\" Copyright 1989 AT&T
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.TH YPXFR 1M "Mar 11, 1998"
.SH NAME
ypxfr, ypxfr_1perday, ypxfr_1perhour, ypxfr_2perday \- transfer NIS map from a
NIS server to host
.SH SYNOPSIS
.LP
.nf
\fB/usr/lib/netsvc/yp/ypxfr\fR [\fB-c\fR] [\fB-f\fR] [\fB-C\fR \fItid\fR \fIprog\fR \fIserver\fR]
     [\fB-d\fR \fIypdomain\fR] [\fB-h\fR \fIhost\fR] [\fB-s\fR \fIypdomain\fR] \fImapname\fR
.fi

.SH DESCRIPTION
.sp
.LP
The \fBypxfr\fR command moves an \fBNIS\fR map in the default domain for the
local host to the local host by making use of normal \fBNIS\fR services. It
creates a temporary map in the directory \fB/var/yp/\fR\fIypdomain\fR (this
directory must already exist; \fIypdomain\fR is the default domain for the
local host), fills it by enumerating the map's entries, fetches the map
parameters (master and order number), and loads them. It then deletes any old
versions of the map and moves the temporary map to the real \fIname\fR.
.sp
.LP
If run interactively, \fBypxfr\fR writes its output to the terminal. However,
if it is started without a controlling terminal, and if the log file
\fB/var/yp/ypxfr.log\fR exists, it appends all its output to that file. Since
\fBypxfr\fR is most often run from the privileged user's \fBcrontab\fR file, or
by \fBypserv\fR, the log file can retain a record of what was attempted, and
what the results were.
.sp
.LP
For consistency between servers, \fBypxfr\fR should be run periodically for
every map in the \fBNIS\fR data base. Different maps change at different rates:
a map might not change for months at a time, for instance, and can therefore be
checked only once a day. Some maps might change several times per day. In such
a case, you might want to check hourly for updates. A \fBcrontab\fR(1) entry
can be used to automatically perform periodic updates. Rather than having a
separate \fBcrontab\fR entry for each map, you can group commands to update
several maps in a shell script. Examples (mnemonically named) are in
\fB/usr/sbin/yp\fR: \fBypxfr_1perday\fR, \fBypxfr_2perday\fR, and
\fBypxfr_1perhour\fR.
.sp
.LP
Refer to \fBypfiles\fR(4) for an overview of the NIS name service.
.SH OPTIONS
.sp
.ne 2
.na
\fB\fB-c\fR\fR
.ad
.RS 22n
Do not send a "Clear current map" request to the local \fBypserv\fR process.
Use this flag if \fBypserv\fR is not running locally at the time you are
running \fBypxfr\fR. Otherwise, \fBypxfr\fR complains that it cannot
communicate with the local \fBypserv\fR, and the transfer fails.
.RE

.sp
.ne 2
.na
\fB\fB-f\fR\fR
.ad
.RS 22n
Force the transfer to occur even if the version at the master is not more
recent than the local version.
.RE

.sp
.ne 2
.na
\fB\fB-C\fR\fI tid prog server\fR\fR
.ad
.RS 22n
This option is for use \fIonly\fR by \fBypserv\fR. When \fBypserv\fR starts
\fBypxfr\fR, it specifies that \fBypxfr\fR should call back a \fByppush\fR
process at the host \fIserver\fR, registered as program number \fIprog\fR, and
waiting for a response to transaction \fItid\fR.
.RE

.sp
.ne 2
.na
\fB\fB-d\fR\fI ypdomain\fR\fR
.ad
.RS 22n
Specify a domain other than the default domain.
.RE

.sp
.ne 2
.na
\fB\fB-h\fR \fIhost\fR\fR
.ad
.RS 22n
Get the map from \fIhost\fR, regardless of the master. If \fIhost\fR is not
specified, \fBypxfr\fR asks the \fBNIS\fR service for the name of the master,
and tries to get the map from there. \fIhost\fR must be a valid host name.
.RE

.sp
.ne 2
.na
\fB\fB-s\fR\fI ypdomain\fR\fR
.ad
.RS 22n
Specify a source domain from which to transfer a map that should be the same
across domains.
.RE

.SH FILES
.sp
.ne 2
.na
\fB\fB/var/yp/ypxfr.log\fR\fR
.ad
.sp .6
.RS 4n
Log file
.RE

.sp
.ne 2
.na
\fB\fB/usr/lib/netsvc/yp/ypxfr_1perday\fR\fR
.ad
.sp .6
.RS 4n
Script to run one transfer per day, for use with \fBcron\fR(1M)
.RE

.sp
.ne 2
.na
\fB\fB/usr/lib/netsvc/yp/ypxfr_2perday\fR\fR
.ad
.sp .6
.RS 4n
Script to run two transfer per day, for use with \fBcron\fR(1M)
.RE

.sp
.ne 2
.na
\fB\fB/usr/lib/netsvc/yp/ypxfr_1perhour\fR\fR
.ad
.sp .6
.RS 4n
Script for hourly transfers of volatile maps
.RE

.sp
.ne 2
.na
\fB\fB/var/yp/\fR\fIypdomain\fR\fR
.ad
.sp .6
.RS 4n
\fBNIS\fR domain
.RE

.sp
.ne 2
.na
\fB\fB/usr/spool/cron/crontabs/root\fR\fR
.ad
.sp .6
.RS 4n
Privileged user's \fBcrontab\fR file
.RE

.SS "ypxfr_1perday, ypxfr_1perhour, and ypxfr_2perday"
.sp

.SH SEE ALSO
.sp
.LP
\fBcrontab\fR(1), \fBcron\fR(1M), \fBypinit\fR(1M), \fByppush\fR(1M),
\fBypserv\fR(1M), \fBypfiles\fR(4), \fBattributes\fR(5)