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Configuring an SSH server to accept any password would be easy with PAM — put pam_permit on the auth stack, and voilà. The possibility of misconfiguring such an open system is inherent to the flexibility of PAM — since it lets you chain as many tests as you want, the possibility of doing 0 tests is unavoidable (at least without introducing weird exceptions ...


A # in sshd_config is interpreted as the beginning of a comment and everything following it is ignored. Although (according to sshd_config(5)) "" may be used to quote arguments containing spaces, they do not quote #. That also explains the error you get. sshd only passes the following to bash: if [[ -z $SSH_ORIGINAL_COMMAND ]]; then bash; else printf " ...


After finding sshd process inoperative, I noticed that something similar is happening, but instead of a missing module, it was something with sshd_config. Check status of the daemon: user1@<host>:/usr/sbin > lssrc -s sshd Subsystem Group PID Status sshd ssh inoperative Attempt to ...


Try this command to view the log from systemctl: journalctl -u sshd |tail -100


I had a error with sftp configuration part of etc/ssh/sshd_config. Now I can't send correct part, but commenting lines this at end of config allow to login via ssh


This is caused by your client rather than the server. The login as: prompt is PuTTY's own, and it won't display the banner before a username is entered. If you're using shared keys, then the banner will be displayed at key exchange time, even if the key goes on to be rejected.

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