然后开始配置开启SSH服务器低版本兼容功能。 system-view [sys] ssh server compatible-ssh1x enable Info: SSHv1is not a secure protocol, and it is recommended to use SSHv2. 之后: [sys]undo ssh server cipher [sys]undo ssh server hmac [sys]undo ssh server key-exchange //如果低于C20SPC300版本,要将全部算法都配置上 [sys]undo ssh server publickey [sys]undo ssh server dh-exchange min-len 最后 [sys]ssh server dh-exchange min-len1024