Use this group policy to specify the file that contains the public keys that can be used for user authentication.
If you enable this policy, specify the file in the authorized keys file box. The file specification is interpreted as an absolute path or a path relative to the user’s home directory. To specify multiple files, separate each entry with a space.
The default file specification is
.ssh/authorized_keys. In addition, if there are backward compatibility issues,
.ssh/authorized_keys2 is checked.