RMySQL数据库连接坏握手

Question

我正在尝试使用SSL使用RMySQL连接到远程数据库，但似乎无法使其工作。我在OSX，R版本3.4.2。

在命令行上通过mysql连接使用：

mysql -h host.com --ssl-mode=REQUIRED -u uname -p

但是当我尝试连接RMySQL时，我收到了一些错误消息。

RMySQL::dbConnect(MySQL(), user = "uname", password = "pword", 
                  host = "host.com", dbname = "db") 
Error in .local(drv, ...) : 
  Failed to connect to database: Error: Connections using insecure 
  transport are prohibited while --require_secure_transport=ON.

并且

RMySQL::dbConnect(MySQL(), user = "uname", password = "pword", 
                  host = "host.com", dbname = "db", 
                  client.flag = CLIENT_SSL) 
Error in .local(drv, ...) : 
  Failed to connect to database: Error: Bad handshake

有谁知道这里会发生什么？