hi, am i newbie to NIS world but having a wierd problem. Am having 8 machines in my network with NIS master and rest are NIS clients all on RH 8.0. 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 am using ypbind-1.11-2 ypserv-2.5-1 yp-tools-2.7-3 have googled out for this but didn't find any satisfactory answer. plese help me slove this. thanks in advance sandeep __________________________________ Do you Yahoo!? Yahoo! Finance: Get your refund fast by filing online. http://taxes.yahoo.com/filing.html _______________________________________________ Pam-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/pam-list