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I have an EC2 base instance, and they usually have password authentication disable in the sshd service. They only authenticate with key. The situation I have is every time I try to ssh into another linux host that authenticate with password I get the following message:

Warning: Permanently added 'customerstg.domain.net' (RSA) to the list of known hosts. Permission denied (publickey,gssapi-with-mic,password).

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2 Answers 2

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Ok. Sorry to bother everyone. I found the issue of my situation. In my EC2 server, under the /root/.ssh/ directory is a file called config.

This file had the following settings:

StrictHostKeyChecking no
CheckHostIP no

PasswordAuthentication no

I change the PasswordAuthentication from no to yes.

And that fixed the situation. I hope this helps other people.

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What are the permissions on the remote host's user's .ssh directory? IIRC, they must be 700 to work properly. If you're coming from a Linux host, then permissions on the local id_rsa/dsa file(private key) must be 600.

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