title: Vagrant Virtualbox port fowarding: Connection reset by peer
body: <p>I have a virtualbox VM running elasticsearch on port 9200 which I'm trying to connect to my localhost. However every time I try to access the port, I get hit with </p>
  
  <pre><code>curl -v localhost:9200
  * Rebuilt URL to: localhost:9200/
  *   Trying 127.0.0.1...
  * TCP_NODELAY set
  * Connected to localhost (127.0.0.1) port 9200 (#0)
  &gt; GET / HTTP/1.1
  &gt; Host: localhost:9200
  &gt; User-Agent: curl/7.54.0
  &gt; Accept: */*
  &gt; 
  * Recv failure: Connection reset by peer
  * stopped the pause stream!
  * Closing connection 0
  curl: (56) Recv failure: Connection reset by peer
  </code></pre>
  
  <p>Here is my vagrant file. I'm not really sure what I need to fix. </p>
  
  <pre><code># -*- mode: ruby -*-
  # vi: set ft=ruby :
  
  Vagrant.configure(2) do |config|
    config.vm.box = "ubuntu/trusty64"
  
    config.vm.synced_folder "~/workspace", "/home/vagrant/projects"
    config.vm.provider "virtualbox" do |vb|
      vb.memory = "8096"
    end
    config.vm.network "forwarded_port", guest: 9200, host: 9200
    config.vm.network "private_network", ip: "192.168.50.4"
    config.vm.provision "file", source: "~/.ssh/id_rsa", destination: "~/.ssh/id_rsa"
    config.vm.provision "file", source: "~/.ssh/id_rsa.pub", destination: "~/.ssh/id_rsa.pub"
  end
  </code></pre>
  
  <p>this is the printout for when I run vagrant reload</p>
  
  <pre><code>==&gt; default: Attempting graceful shutdown of VM...
  ==&gt; default: Checking if box 'ubuntu/trusty64' is up to date...
  ==&gt; default: A newer version of the box 'ubuntu/trusty64' for provider 'virtualbox' is
  ==&gt; default: available! You currently have version '20180627.0.1'. The latest is version
  ==&gt; default: '20180709.0.1'. Run `vagrant box update` to update.
  ==&gt; default: Clearing any previously set forwarded ports...
  ==&gt; default: Clearing any previously set network interfaces...
  ==&gt; default: Preparing network interfaces based on configuration...
      default: Adapter 1: nat
      default: Adapter 2: hostonly
  ==&gt; default: Forwarding ports...
      default: 9200 (guest) =&gt; 9200 (host) (adapter 1)
      default: 22 (guest) =&gt; 2222 (host) (adapter 1)
  ==&gt; default: Running 'pre-boot' VM customizations...
  ==&gt; default: Booting VM...
  ==&gt; default: Waiting for machine to boot. This may take a few minutes...
      default: SSH address: 127.0.0.1:2222
      default: SSH username: vagrant
      default: SSH auth method: private key
  ==&gt; default: Machine booted and ready!
  ==&gt; default: Checking for guest additions in VM...
      default: The guest additions on this VM do not match the installed version of
      default: VirtualBox! In most cases this is fine, but in rare cases it can
      default: prevent things such as shared folders from working properly. If you see
      default: shared folder errors, please make sure the guest additions within the
      default: virtual machine match the version of VirtualBox you have installed on
      default: your host and reload your VM.
      default: 
      default: Guest Additions Version: 4.3.36
      default: VirtualBox Version: 5.2
  ==&gt; default: Configuring and enabling network interfaces...
  ==&gt; default: Mounting shared folders...
      default: /vagrant =&gt; /Users/gyeongbae.jung/Projects
      default: /home/vagrant/projects =&gt; /Users/gyeongbae.jung/workspace
  ==&gt; default: Machine already provisioned. Run `vagrant provision` or use the `--provision`
  ==&gt; default: flag to force provisioning. Provisioners marked to run always will still run.
  </code></pre>