Ubuntu上的Hortonworks SSH问题：ssh_exchange_identification：远程主机关闭了连接

Question

我试图研究类似的问题，但是没有一种解决方案可以解决我的问题。

我正在Ubuntu 16.04 LTS的Virtualbox上使用Hortonworks HDP 2.6.5沙箱。 Hortonworks正在运行，我在VirtualBox上显示了以下内容：

按照说明，我通过以下命令将localhost上的4200端口用于ssh：

ssh [user]@127.0.0.1 -p 4200

这会导致以下错误：

ssh_exchange_identification: Connection closed by remote host

我尝试调试，得到以下日志：

OpenSSH_7.2p2 Ubuntu-4ubuntu2.4, OpenSSL 1.0.2g  1 Mar 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to 127.0.0.1 [127.0.0.1] port 4200.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /home/mahsa/.ssh/id_rsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/mahsa/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/mahsa/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/mahsa/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/mahsa/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/mahsa/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/mahsa/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/mahsa/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.4
debug1: ssh_exchange_identification: HTTP/1.1 400 Bad Request

如果有人可以提供帮助，我将不胜感激。

谢谢

Answer 1

在HDP沙箱控制台中打印的有关SSH访问的说明具有误导性。端口4200对于在浏览器中使用HTTP协议进行外壳访问非常有用，因此不适用于命令行ssh。请注意，在日志末尾出现“ HTTP / 1.1 400错误的请求”错误消息。尝试尝试使用端口2222，如下所示：

提示> ssh root @ localhost -p 2222