1

NOTE : I have referenced lot of websites and referenced stack overflow answers but its not working for me

I have set up ssh login for my Raspberry Pi 3 Model B V1.2 and its working like a breeze.

Now I want to make it more secure by removing password login for my pi user. So, I did the following changes in the file /etc/ssh/sshd_config

From

#PasswordAuthentication Yes

To

PasswordAuthentication no

Save and exit the file

Then

sudo service ssh restart

Even tried rebooting the Pi

But when I connect with other devices its prompting for Password, which it must not happen.

It must not allow any prompts for password and must show error. How can I achieve this?

References:

https://steve.dynedge.co.uk/2012/05/30/logging-into-a-rasberry-pi-using-publicprivate-keys/

https://dvpizone.wordpress.com/2014/03/02/how-to-connect-to-your-raspberry-pi-using-ssh-key-pairs/

  • If you refere to other websites, please add the url's! – MatsK Feb 17 '18 at 15:37
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    Try to connect using ssh -vv ... and edit in the output above. – goldilocks Feb 17 '18 at 16:48
  • Maybe ssh is asking for the password to unlock your private key and everything is working well? – Ingo Feb 18 '18 at 1:56
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    duplicate of unix.stackexchange.com/questions/373290/… – Fabian Feb 18 '18 at 17:08
2

If you want to fully disable password-based authentication, set BOTH PasswordAuthentication and ChallengeResponseAuthentication to no.

  • Thanks @Matsk it worked for me. Was actually ssh ing from juice ssh from android mobile. So it was showing password. Elsewhere its working awesome. – Channaveer Hakari Feb 18 '18 at 5:31
1

If you look here, you can set how users authenticate themselves (the order of the authentications used). Just set AuthenticationMethods to publickey, it should not be going to a password. Use this in combination with the other answer (disable password authentication).

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