[Samba] linux authenticate AD

[maged maged]

hello every body ,
I was configured samba client to join win AD and  it was succefully  and 
this files that modifyed
/etc/krb5
/etc/security/pam_unix2
enable winbind  service

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but the problem when restart this machine i can't login with any account 
from ACTIVE DIRECTORY , or LOCAL FILES

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