从Docker容器访问主机的ssh隧道

使用ubuntu tusty，在远程计算机上运行了一项服务，我可以通过SSH隧道通过端口转发从 localhost：9999 访问该服务。

Using ubuntu tusty, there is a service running on a remote machine, that I can access via port forwarding through an ssh tunnel from localhost:9999.

我正在运行一个Docker容器。我需要通过主机的隧道从容器内部访问该远程服务。

I have a docker container running. I need to access that remote service via the host's tunnel, from within the container.

我尝试使用 -L从容器到主机的隧道9000：host-ip：9999 ，然后从容器内部通过 127.0.0.1:9000 访问服务失败。要检查端口映射是否打开，我尝试了

nc -luv -p 9999＃在主机
nc -luv -p 9000＃在容器


I tried tunneling from the container to the host with -L 9000:host-ip:9999 , then accessing the service through 127.0.0.1:9000 from within the container fails to connect. To check wether the port mapping was on, I tried nc -luv -p 9999 # at host nc -luv -p 9000 # at container

跟随此，parag。 2 ，但即使在执行

nc -luv host-ip -p 9000
时，也没有感知到的通信容器

following this, parag. 2 but there was no perceived communication, even when doing nc -luv host-ip -p 9000 at the container

我还尝试通过 docker run -p 9999：9000 映射端口，但这报告了绑定失败，因为主机端口已在使用（大概是从主机隧道到远程计算机）。

I also tried mapping the ports via docker run -p 9999:9000 , but this reports that the bind failed because the host port is already in use (from the host tunnel to the remote machine, presumably).

所以我的问题是

1-如何实现连接？我是否需要设置一条通往主机的ssh隧道，还是可以仅通过docker端口映射来实现？

1 - How will I achieve the connection? Do I need to setup an ssh tunnel to the host, or can this be achieved with the docker port mapping alone?

2-测试连接的快速方法是什么起来了吗

2 - What's a quick way to test that the connection is up? Via bash, preferably.

谢谢。