Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

How can I configure the OpenSSH server (on Ubuntu) to allow keyboard-interactive but not password authentication?

I know that public-key-authentication is the preferred one, but I want to test a user setup.

share|improve this question
    
keyboard-interactive but not password authentication? Can you rephrase that? –  BennyInc Sep 20 '11 at 11:56

2 Answers 2

up vote 1 down vote accepted

Set ChallengeResponseAuthentication=yes in your sshd.conf I think

share|improve this answer

You need to configure PAM for use with OPIE or OTPW, depending on your Ubuntu version. Once you have a one-time password system in place and properly configured via the /etc/pam.d/sshd module, then you can setup SSH to make use of it.

# /etc/ssh/sshd_config
PasswordAuthentication no
ChallengeResponseAuthentication yes

Don't forget to reload SSH after making changes to the configuration file; otherwise, your changes will not take effect.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.