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Operating Systems Linux Red Hat Yppasswdd not running on nis master server Post 302832827 by MadeInGermany on Monday 15th of July 2013 09:20:41 PM
Old 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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nissetup(8)						      System Manager's Manual						       nissetup(8)

NAME
nissetup, ypsetup - Sets up the Network Information Service (NIS) environment SYNOPSIS
/usr/sbin/nissetup /usr/sbin/ypsetup DESCRIPTION
The nissetup (formerly ypsetup) script configures and runs NIS on your system. You can use nissetup to initially set up your NIS configura- tion, to change your current NIS configuration, or to remove your NIS configuration. NIS provides a distributed data lookup service for sharing data among networked systems. Before running nissetup, make sure that your system is connected to a local area network and that the network is configured and running. You must know the name of your NIS domain and your system's role in the domain (master server, slave server, or client). Security Note You invoke nissetup from the SysMan Menu. See sysman(8) for more information. When using the nissetup script to set up a NIS server that is running with enhanced security, you must answer yes to the question about locking the domain name and authorized servers (the ypbind -S option). If you are setting up a master server, the server is bound to itself (done by default). If you are setting up a slave server, the server is bound to itself done by default) and optionally to the master server and any other slave servers. If your system will be the master server for your NIS domain, be sure no other master exists for your domain and that the NIS database files are in the /var/yp/src directory. Note Remove the root entry, if it exists, from the passwd database file. If your system be will be a slave server or client, be sure a master server is already set up for your NIS domain. FILES
Specifies the command pathname NIS parameters pertinent to a specific system Default NIS Databases In the /var/yp/src directory, the default databases are: Group database Host database Sendmail alias database Network group aliases data- base Network database Password database Protocol database RPC database Service database SEE ALSO
Commands: domainname(1), ypwhich(1), svcsetup(8), sysman(8), sysman_station(8), ypbind(8), yppasswdd(8), ypserv(8), ypxfr(8) Files: svc.conf(4) Networking: nis_intro(7), nis_manual_setup(7) Network Administration nissetup(8)
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