I would like to turn off password authentication for SSH to my server, using keys instead. I don't see an option in Filezilla to use a public key though: is this not a feature of the SFTP spec?

FileZilla Server 是一个免费开源的 FTP 和 FTPS 服务器，能够提供与服务器的安全加密连接。Filezilla Server 没有实现对 SFTP（SSH 文件传输协议）的支持。 FileZilla Server 1.4.1 发布，更新内容如下： Admin UI: 修复了监听器页面上的崩溃 Admin UI: 改进了更改用户密码的工作流程 ...

The danger is that opening it to the WWW means bots are going to hit it hundreds of times a day and if passwords are not strong, bad things could happen and on top of that those passwords are sent in ...