1pam_fprintd(8)                                                  pam_fprintd(8)
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NAME

6       pam_fprintd - PAM module to authenticate against fprintd, the
7       fingerprint daemon
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SYNOPSIS

10       pam_fprintd.so [debug|debug=[on|off|true|false|1|0]]
11       [max-tries=MAX_TRIES] [timeout=TIMEOUT]
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DESCRIPTION

14       The pam_fprintd module is used to verify a user's fingerprints against
15       fingerprints enrolled using fprintd, the fingerprint management daemon.
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OPTIONS

18       debug
19       debug=[on|off|true|false|1|0]
20               Whether debug should be turned on or off. Debug messages will
21               be generated using pam_syslog which means that they will be
22               saved in the systemd journal by default.
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24       max-tries=MAX_TRIES
25               The number of attempts at fingerprint authentication to try
26               before returning an authentication failure. The minimum number
27               of tries is 1 while the default is 3.
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29       timeout=TIMEOUT
30               The amount of time before returning an authentication failure.
31               The default timeout is 30 seconds, with 10 seconds being the
32               minimum.
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LIMITATIONS

35       The PAM stack is by design a serialised authentication, so it is not
36       possible for pam_fprintd to allow authentication through passwords and
37       fingerprints at the same time.
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39       It is up to the application using the PAM services to implement
40       separate PAM processes and run separate authentication stacks
41       separately. This is the way multiple authentication methods are made
42       available to users of gdm for example.
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AUTHOR

45       fprintd was written by Bastien Nocera.
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SEE ALSO

48       fprintd, PAM
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52freedesktop                       2022-02-24                    pam_fprintd(8)
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