1UNIX_CHKPWD(8)                 Linux-PAM Manual                 UNIX_CHKPWD(8)
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NAME

6       unix_chkpwd - Helper binary that verifies the password of the current
7       user
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SYNOPSIS

10       unix_chkpwd [...]
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DESCRIPTION

13       unix_chkpwd is a helper program for the pam_unix module that verifies
14       the password of the current user. It also checks password and account
15       expiration dates in shadow. It is not intended to be run directly from
16       the command line and logs a security violation if done so.
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18       It is typically installed setuid root or setgid shadow.
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20       The interface of the helper - command line options, and input/output
21       data format are internal to the pam_unix module and it should not be
22       called directly from applications.
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SEE ALSO

25       pam_unix(8)
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AUTHOR

28       Written by Andrew Morgan and other various people.
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32Linux-PAM Manual                  11/25/2020                    UNIX_CHKPWD(8)