Blame data/pam_fprintd.pod
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=head1 NAME
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pam_fprintd - PAM module to authenticate against fprintd, the fingerprint daemon
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=head1 SYNOPSIS
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B<pam_fprintd.so> [debug|debug=[I<on>|I<off>|I<true>|I<false>|I<1>|I<0>]] [max-tries=I<MAX_TRIES>] [timeout=I<TIMEOUT>]
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=head1 DESCRIPTION
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The pam_fprintd module is used to verify a user's fingerprints against fingerprints
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enrolled using fprintd, the fingerprint management daemon.
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=head1 OPTIONS
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=over 8
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=item B<debug>
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=item B<debug=[I<on>|I<off>|I<true>|I<false>|I<1>|I<0>]>
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Whether debug should be turned on or off. Debug messages will be generated using
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pam_syslog which means that they will be saved in the systemd journal by default.
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=item B<max-tries=I<MAX_TRIES>>
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The number of attempts at fingerprint authentication to try before returning an
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authentication failure. The minimum, and default, number of tries is 3.
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=item B<timeout=I<TIMEOUT>>
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The amount of time before returning an authentication failure. The default timeout
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is 30 seconds, with 10 seconds being the minimum.
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=back
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=head1 LIMITATIONS
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=over 8
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=back
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The PAM stack is by design a serialised authentication, so it is not
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possible for pam_fprintd to allow authentication through passwords and
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fingerprints at the same time.
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It is up to the application using the PAM services to implement separate
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PAM processes and run separate authentication stacks separately. This
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is the way multiple authentication methods are made available to users
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of gdm for example.
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=head1 AUTHOR
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B<fprintd> was written by Bastien Nocera.
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=head1 SEE ALSO
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=over 8
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=item B<fprintd>, B<PAM>
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=back
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