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always passed a shell by the remote yppasswd. If an NIS client overrides the shell provided by the ypserv, then yppasswd (pam_unix, actually, afaict) will pass this new shell to the yppasswdd. If this shell has been set on the client to a shell which is invalid on the server, a user will never be able to change their password on the client. PR: 67142 Submitted by: russell@rucus.ru.ac.za Approved by: bapt (mentor) Sponsored by: EuroBSDCon Sweden.