title: Boot2Docker: can't get ports forwarding to work
body: <p>I'm playing with boot2docker (docker 1.6) on windows 8.1. I wanted to make myself machine container to play with ruby and I want to be able to connect to rails server from my windows host. To start with small steps first I want to connect to my container from my boot2docker VM. I attach my docker file below, it builds without a problem and I can run a container from it. I do it like so:</p>
  
  <pre><code>docker run -it -p 3000:3000 3564860f7afd /bin/bash
  </code></pre>
  
  <p>Then in this container I say:</p>
  
  <pre><code>cd ~/myapp &amp;&amp; bundle exec rails server -d
  </code></pre>
  
  <p>And to see if everything is working I do:</p>
  
  <pre><code>~/myapp$ sudo apt-get install wget &amp;&amp; wget localhost:3000
  </code></pre>
  
  <p>and I get http 500, which is ok, I just wanted to check if server is running. Then I exit using ctrl+p, ctrl+q. But then on boot2docker machine I do agin </p>
  
  <pre><code>wget localhost:3000
  </code></pre>
  
  <p>and get</p>
  
  <pre><code>Connecting to localhost:3000 (127.0.0.1:3000)
  wget: error getting response: Connection reset by peer
  </code></pre>
  
  <p>So it seems like port 3000 is not correctly forwarded to boot2docker VM. What have I done wrong? What did I miss? I googled extensively and tried couple of things like explicitly exposing port from dockerfile of or adding -P switch to run, but I always end up the same way -  it's not working.</p>
  
  <p>Any help will be greatly appreciated.</p>
  
  <p><strong>UPDATE 02.05.2015</strong></p>
  
  <p>I have also tried things described in comment from Markus W Mahlberg and reponse from VonC. My VM configuration seems to be ok, I also checked in GUI of VirtualBox and it seems fine. Some more info: When I start</p>
  
  <pre><code>boot2docker ssh -vnNTL 3000:localhost:3000
  </code></pre>
  
  <p>and then open localhost:3000 on my windows host I see in trace logs in boot2docker console, they look like this:</p>
  
  <pre><code>debug1: channel 1: free: direct-tcpip: listening port 3000 for localhost port 3000, connect from 127.0.0.1 port 50512 to 127.0.0.1 port 3000, nchannels 3
  </code></pre>
  
  <p>Chrome tells me that the response was empty. From checking the logs on container I know that request never got to it.</p>
  
  <p><strong>End of update</strong></p>
  
  <p><strong>Update 03.05.2015</strong></p>
  
  <p>I thing that my problem have not so much to do with boot2docker or docker as with my computer configuration. I've been over my docker/boot2docker configuration so many times, that it is rather unlikely that I've made a mistake there.</p>
  
  <p>Desperately I've reinstalled boot2docker and VirtualBox, still no effects. Any ideas how to debug what can be wrong with my configuration? Only other idea I have is to try doing the same on another machine. But even if this works my original problem is no less annoying.</p>
  
  <p><strong>End of update</strong></p>
  
  <p>Here is my dockerfile:</p>
  
  <pre><code>FROM ubuntu
  MAINTAINER anonymous &lt;anonymous@localhost.com&gt;
  LABEL Description="Ruby container"
  # based on https://gorails.com/setup/ubuntu/14.10
  RUN apt-get update
  RUN apt-get -y upgrade
  RUN apt-get -y install git-core curl zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev python-software-properties libffi-dev
  
  RUN echo '%sudo ALL=(ALL) NOPASSWD:ALL' &gt;&gt; /etc/sudoers \
      &amp;&amp; groupadd anonymous \
      &amp;&amp; useradd anonymous -m -g anonymous -g sudo
  ENV HOME /home/anonymous
  USER anonymous
  
  RUN git clone https://github.com/sstephenson/rbenv.git ~/.rbenv
  RUN echo 'export PATH="$HOME/.rbenv/bin:$PATH"' &gt;&gt; ~/.bashrc
  RUN echo 'eval "$(rbenv init -)"' &gt;&gt; ~/.bashrc
  RUN exec $SHELL
  
  RUN git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
  RUN echo 'export PATH="$HOME/.rbenv/plugins/ruby-build/bin:$PATH"' &gt;&gt; ~/.bashrc
  RUN exec $SHELL
  RUN git clone https://github.com/sstephenson/rbenv-gem-rehash.git ~/.rbenv/plugins/rbenv-gem-rehash
  
  ENV PATH "$HOME/.rbenv/bin:$HOME/.rbenv/plugins/ruby-build/bin:$PATH"
  
  RUN rbenv install 2.2.1
  RUN rbenv global 2.2.1
  
  ENV PATH "$HOME/.rbenv/shims:$PATH"
  
  RUN echo 'gem: --no-ri --no-rdoc' &gt; ~/.gemrc
  RUN gem install bundler
  
  RUN git config --global color.ui true
  RUN git config --global user.name "mindriven"
  RUN git config --global user.email "3dcreator.pl@gmail.com"
  RUN ssh-keygen -t rsa -N "" -f ~/.ssh/id_rsa -C "3dcreator.pl@gmail.com"
  
  RUN sudo apt-get -qy install software-properties-common python-software-properties
  RUN sudo add-apt-repository ppa:chris-lea/node.js
  RUN sudo apt-get -y install nodejs
  
  RUN gem install rails -v 4.2.0
  RUN ~/.rbenv/bin/rbenv rehash
  RUN rails -v
  
  RUN sudo apt-get -qy install mysql-server mysql-client
  RUN sudo apt-get install libmysqlclient-dev
  RUN rails new ~/myapp -d mysql
  RUN sudo /etc/init.d/mysql start &amp;&amp; cd ~/myapp &amp;&amp; rake db:create
  </code></pre>