I'm trying to set up a SFTP server on Windows. I have successfully installed OpenSSH as per https://winscp.net/eng/docs/guide_windows_openssh_server.
My clients are complaining that they have to accept a self-signed key to connect. This is pretty normal to me but is it possible to use a public CA signed key? To avoid this problem?
I've obtained a set of .pem
certs from letsencrypt. How can I convert them to ssh_host_key
and ssh_host_ecdsa_key
format?