Bug 115510

Description of problem:
am i newbiwe to NIS world but having a wierd problem. Am having about 
8 machines in my network with NIS master and rest are NIS clients. 
my /etc/pam.d/passwd looks like 

#%PAM-1.0
auth       required     /lib/security/pam_stack.so service=system-auth
account    required     /lib/security/pam_stack.so service=system-auth
password   required     /lib/security/pam_stack.so service=system-auth

/etc/pam.d/system-auth is 
#%PAM-1.0
# This file is auto-generated.
# User changes will be destroyed the next time authconfig is run.
auth        required      /lib/security/pam_env.so
auth        sufficient    /lib/security/pam_unix.so likeauth nullok
auth        required      /lib/security/pam_deny.so

account     required      /lib/security/pam_unix.so

password    required      /lib/security/pam_cracklib.so retry=3 type=
password    sufficient    /lib/security/pam_unix.so nullok se_authtok 
md5 shadow nis
password    required      /lib/security/pam_deny.so
session     required      /lib/security/pam_limits.so
session     required      /lib/security/pam_unix.so

NIS server is having passwd and shadow files on /etc/yp folder where 
root account is not there. have made required changes 
in /etc/sysconfig/yppasswdd file for the same. Authentication works 
fine on all the cleints. if NIS user tries to change password it 
works abs. fine, and the changes are reflected on all the machines. 
but if i try to change user password as root either from NIS cleint 
or NIS server i get an error 

# passwd sandeep
New password:
Retype new password:
RPC: Can't encode arguments
The password has not been changed on NISSERVER.
passwd: Failed preliminary check by password service

have googled out for this but didn't find any satisfactory answer. 
plese help me slove this. 

Version-Release number of selected component (if applicable):
ypbind-1.11-2
ypserv-2.5-1
yp-tools-2.7-3


How reproducible:
Always

Actual results:
RPC: Can't encode arguments
The password has not been changed on NISSERVER.
passwd: Failed preliminary check by password service


Expected results:
passwd: all authentication tokens updated successfully.

Additional info: