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You have indicated that you would accept using the the user’s home directory to be used as the base for .ssh/ – whether the user is a real user, system user or root. This failed, because sshd was checking /root/.ssh/authorized_keys. Specifies the file that contains the public keys that can be used for user authentication.
Specifies the file that contains the public keys that can be used for user authentication. AuthorizedKeysFile may contain tokens of the form %T which are substituted during connection setup.
Where is SSH public key associated with a user?
To set up SSH key authentication for one of your server’s users, add your public key to a new line inside the user’s authorized_keys file. This file is stored inside a directory named .ssh/ under the user’s home folder. A user’s authorized_keys file can store more than one public key, and each public key is listed on its own line.
Where does SSHD read configuration data from in Windows?
Windows Configurations in sshd_config. In Windows, sshd reads configuration data from %programdata%sshsshd_config by default, or a different configuration file may be specified by launching sshd.exe with the -f parameter. If the file is absent, sshd generates one with the default configuration when the service is started.
Where to find ssh authorized keys in OpenSSH?
This location is specified in /etc/ssh/sshd_config under the option AuthorizedKeysFile %h/.ssh/authorized_keys. Another tip to remember: Since v7.0 OpenSSH disables DSS/DSA SSH keys by default due to their inherit weakness. So if you have OpenSSH v7.0+, make sure your key is not ssh-dss.
You need to verify the permissions of the authorized_keys file and the folder / parent folders in which it is located. For more information see this page. You may also need to change/verify the permissions of your home directory to remove write access for the group and others. SELinux can also cause authorized_keys not to work.