Question

I restored from a snapshot and now my ssh is prompting for a password?

SSH config has password authentication as no, and it was ok until i restored a previous snapshot, i deleted the known host record also.

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I had (have) the same issue. When restoring an image that already had ssh keys configured, if I ask for an SSH key to be included (the same one already there), it’s no longer possible to use the SSH key to log in. If I don’t include it, then I get an email with a new root password, which defeats the purpose of using password-less SSH, and in fact in my scenario is not usable, since I have disabled root logins and password.

I’d like to know how to do this properly without having a new password set.

In most cases, selecting the correct key on the droplet creation page will insert it into the new droplet on creation. This process depends on cloud-init so if any changes affected that it could potentially result in what you’re seeing. Either way, if you open a ticket with our support team they can boot your droplet to a recovery ISO (Debian based live dvd image) and from there you can manually add your key to /root/.ssh/authorized_keys Once you’ve added your key manually, update your ticket and the support team can remove the recovery image so you can boot back to your disk.