How to Retrieve SSH Password with a Working SSH Key

authenticationpasswordssh

I always login a server with a ssh key, so I am not sure what my actual password was anymore. I would need to guess a couple of times. However the server has fail2ban and I don't want to trigger that. ~~Is there any way to check which of my passwords corresponds to the ssh key which is accepted by the server?~~

Is there anyway I can check my password after logging in with the ssh-key without triggering fail2ban?

Best Answer

No, there is no relation between an account password and the ssh key.

You can logon to an account with ssh with a key even if it has no password.

For the updated question, yes, type:

su YOURUSERNAME

then try if you remember your password

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Ssh – setting up ssh public key

Check permissions. OpenSSH will not allow public-key authentication if a user's home directory, ~/.ssh, or ~/.ssh/authorized_keys is world writable. Also, ~/.ssh and ~/.ssh/authorized_keys should probably not be group-writable either. Leave IdentityFile at the default, it's has nothing to do with the server aspect. It points to the default private key file used by the ssh client on UNIX/Linux. ssh_config is used only by the ssh client, and not the OpenSSH sshd server. The contents of authorized_keys should be one line per public key that is authorized to log in and look something like this:

ssh-rsa AAA.../Us= My Public Key comment

Where ... is a bunch of base64 characters ([a-zA-Z/+=]). PuTTYGen can generate two forms of keys: PuTTY and OpenSSH compatible. The OpenSSH compatible will be one long line in the above format. If it's in PuTTY format, you can import it back into PuTTYGen and save as OpenSSH.

ssh – How to Force SSH Client to Use Only Password Authentication

I recently needed this too, and came up with this:

ssh -o PreferredAuthentications=password -o PubkeyAuthentication=no example.com

You need to make sure that the client isn't configured to disallow password authentication.

Best Answer

Related Solutions

Ssh – setting up ssh public key

ssh – How to Force SSH Client to Use Only Password Authentication

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