Am Tue, Nov 12, 2024 at 10:46:04AM -0000 schrieb seojeong kim via sssd-users:
> I see this with ssh login.

Hi,

ok, then this behavior you see is expected. This is a special handling
for ssh since we do not know if ssh was used with
'PasswordAuthentication' or 'KbdInteractiveAuthentication' (formerly
known as 'ChallengeResponseAuthentication'). In the latter the fully PAM
prompting (First/Second factor) is shown to the user. In the former the
ssh client always only asks for 'Password' and on the server side the
user input is just send to all PAM prompts, i.e. first and second factor
prompt get the same input. If pam_sss detects this case, i.e. PAM
service is 'sshd' and first and second factor are the same, it is assumed
that the user entered first and second factor in a single string.

HTH

bye,
Sumit

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