- create ssh key by putty https://www.digitalocean.com/docs/droplets/how-to/add-ssh-keys/create-with-putty/#working-with-putty-s-public-key-format
- Add the ssh key to doplet. https://www.digitalocean.com/docs/droplets/how-to/add-ssh-keys/to-existing-droplet/
- Connect by putty https://www.digitalocean.com/docs/droplets/how-to/connect-with-ssh/putty/
- Connect by filezila , have to load key file.
- If shows “PuTTY Server Refused Our Key” then please flow http://toihid.com/putty-server-refused-our-key/