07-15-2013
ypxfrd is needed on the NIS master only if there are NIS slave servers that are configured to pull copies from the NIS master by means of ypxfr command
in crontab; also needed if a new slave server is added with ypinit command.
I recommend to use yppush in the master's /var/yp/Makefile that pushes copies to the NIS slaves if a map was changed.
ypxfrd is never needed on a NIS client.
Password is changed with yppasswd command; passwd command should work, too.
Each NIS client should have IP addresses of the NIS servers (master and slaves) configured (in /etc.yp.conf or other file, depends on Linux distro). If hostnames are configured it needs /etc/hosts entries to translate them to IP addresses.
A yppasswd talks to the yppasswdd on the NIS master. Could be that it reports own hostname and IP address where yppasswdd then performs a sanity check (safety is not the right word here).
Last edited by MadeInGermany; 07-15-2013 at 10:26 PM..
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LEARN ABOUT REDHAT
ypinit
ypinit(8) System Manager's Manual ypinit(8)
NAME
ypinit - NIS database install and build program
SYNOPSIS
/usr/lib/yp/ypinit [ -m ] [ -s master_name ]
DESCRIPTION
ypinit builds the domain subdirectory of /var/yp for the current default domain. After building the domain subdirectory, ypinit builds a
complete set of administrative maps for your system and places them in this directory. The first map created by ypinit -m is the ypservers
map. You should run it as root on the hosts, which should be the master ypserver. You should have only one master server per NIS domain.
All databases are built from scratch, either from information available to the program at runtime, or from the ASCII data base files in
/etc. These files are listed below under FILES.
An NIS database on a slave server is set up by copying an existing database from a running server. The master_name argument should be the
hostname of an NIS server (either the master server for all the maps, or a server on which the data base is up-to-date and stable).
OPTIONS
-m If the local host is the NIS master.
-s Set up a slave server with the database from master_name
FILES
/etc/passwd
/etc/group
/etc/hosts
/etc/networks
/etc/services
/etc/protocols
/etc/netgroup
/etc/rpc
SEE ALSO
makedbm(8), revnetgroup(8), yppush(8), ypserv(8), ypxfr(8)
BUGS
There isn't a good error handling at the moment.
AUTHOR
Thorsten Kukuk <kukuk@suse.de>
August 1996 ypinit(8)