passwd: User not known to the underlying authentication module

tinaa · 08-19-2003, 12:29 AM

Hello All,

Whenever I try to change password for a user following error is been fired.

"passwd: User not known to the underlying authentication module"

Any sugesstions would be appreciated.

Thank you,

darthtux · 08-19-2003, 12:51 AM

Reinstalling PAM should fix the problem

It may be like a corrupt file in
/etc/pam.d/

sudam · 05-18-2008, 10:54 AM

Hi

If anyone got the error "passwd: User not known to the underlying authentication module" while entering the password for a user then try with the below

Enter the command pwconv and try to change the password of the user.

passwd <username>
New UNIX password: Type the new password
Retype new UNIX password: Re-enter the same password

Thanks and Regards,
Sudam