[Ssh-sftp-perl-users] different authentication behavior in ssh/Net::SSH::Perl

[Neven L. <Nev...@pa...>]

Hello,

hope this is not considered off topic, but Net::SSH::Perl does play some
part.

I have noticed a strange difference when logging in to a remote machine
via ssh or Net::SSH::Perl:

- logging in via ssh authenticates me using keyboard interactive login
- logging in via Net::SSH::Perl only works with public key

When looking at sshd_configuration of the target server, it has:
PasswordAuthentication No
...
UsePAM Yes

which is common for SuSE.

When I set PasswordAuthentication Yes I get the possibility of
authenticating via keyboard interactive with Net::SSH::Perl too.

To my understanding UsePAM makes sshd use PAM for authentication
purposes and ignore the setting of PasswordAuthentication. As the client
cannot change this behavior I am wondering what's going on here?

Any clues appreciated.

Greetings

Neven