http://localhost:3000 へアクセスできない

Question

###前提・実現したいこと
ターミナルにて
vagrant@vagrant-ubuntu-trusty:/vagrant/lesson$ rails s -b 0.0.0.0
を実行し、
http://localhost:3000
にアクセスしてみたのですが、うまくいきませんでした。

その後、グーグルで検索しつつ以下のことを試みましたが、ダメでした。

他に手立てはありますでしょうか？
よろしくお願いします。

###発生している問題・エラーメッセージ

このサイトにアクセスできません
localhost で接続が拒否されました。 

###該当のソースコード

Last login: Tue Jul 12 18:29:42 on console 
kimon:~ r_sawa$ cd desktop/work/vagrant 
kimon:vagrant r_sawa$ vagrant up 
Bringing machine 'default' up with 'virtualbox' provider... 
==> default: Clearing any previously set forwarded ports... 
==> default: Clearing any previously set network interfaces... 
==> default: Preparing network interfaces based on configuration... 
default: Adapter 1: nat 
default: Adapter 2: hostonly 
==> default: Forwarding ports... 
default: 80 (guest) => 8080 (host) (adapter 1) 
default: 22 (guest) => 2222 (host) (adapter 1) 
==> default: Booting VM... 
==> 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 
==> default: Machine booted and ready! 
[default] GuestAdditions 5.0.24 running --- OK. 
==> default: Checking for guest additions in VM... 
==> default: Configuring and enabling network interfaces... 
==> default: Mounting shared folders... 
default: /vagrant => /Users/r_sawa/Desktop/work/vagrant 
==> default: Machine already provisioned. Run `vagrant provision` or use the `--provision` 
==> default: flag to force provisioning. Provisioners marked to run always will still run. 
kimon:vagrant r_sawa$ vagrant ssh 
Welcome to Ubuntu 15.04 (GNU/Linux 3.19.0-15-generic x86_64)
* Documentation: https://help.ubuntu.com/ 
Your Ubuntu release is not supported anymore. 
For upgrade information, please visit: 
http://www.ubuntu.com/releaseendoflife
New release '15.10' available. 
Run 'do-release-upgrade' to upgrade to it.
Last login: Tue Jul 12 09:21:10 2016 from 10.0.2.2 
vagrant@vagrant-ubuntu-trusty:~$ cd /vagrant/lesson 
vagrant@vagrant-ubuntu-trusty:/vagrant/lesson$ rails s -b 0.0.0.0 
=> Booting WEBrick 
=> Rails 4.2.4 application starting in development on http://0.0.0.0:3000 
=> Run `rails server -h` for more startup options 
=> Ctrl-C to shutdown server 
[2016-07-12 09:37:20] INFO WEBrick 1.3.1 
[2016-07-12 09:37:20] INFO ruby 2.2.3 (2015-08-18) [x86_64-linux] 
[2016-07-12 09:37:20] INFO WEBrick::HTTPServer#start: pid=1893 port=3000 

###試したこと
・lesson各ファイルのコードの記述チェックし、実行
・rails s を打つフォルダの変更後、実行
・Vagrantfile 内のコード変更後、実行
・http://0.0.0.0:3000でのアクセス
・http://localhost:3000/people/step1でのアクセス
・vagrant再起動して、実行
・PCを再起動して、ファイヤーウォール切にして、実行

###補足情報(言語/FW/ツール等のバージョンなど)
●ツールなどのバージョン
・MacBook Air (13-inch, Early 2015) OS X EI Capitan バージョン10.11.5

・rvm 1.27.0 (latest) by Wayne E. Seguin [e-mail], Michal Papis [e-mail] [https://rvm.io/]
・ruby 2.2.3p173 (2015-08-18 revision 51636) [x86_64-linux]
・Rails 4.2.4
・git version 2.1.4

Answer 1

Vagrantfile内でポートフォワーディングは設定していますか？
https://www.vagrantup.com/docs/networking/forwarded_ports.html

Comments

[kerri_net]

早速の回答ありがとうございます。
書いていると思います。
以下がVagrantfile内の記述で、ポートフォワーディング部分の左に「→」をつけました。

# -*- mode: ruby -*-
# vi: set ft=ruby :

# All Vagrant configuration is done below. The "2" in Vagrant.configure
# configures the configuration version (we support older styles for
# backwards compatibility). Please don't change it unless you know what
# you're doing.
Vagrant.configure("2") do |config|
# The most common configuration options are documented and commented below.
# For a complete reference, please see the online documentation at
# https://docs.vagrantup.com.

# Every Vagrant development environment requires a box. You can search for
# boxes at https://atlas.hashicorp.com/search.
config.vm.box = "ubuntu15"

# Disable automatic box update checking. If you disable this, then
# boxes will only be checked for updates when the user runs
# `vagrant box outdated`. This is not recommended.
# config.vm.box_check_update = false

# Create a forwarded port mapping which allows access to a specific port
# within the machine from a port on the host machine. In the example below,
# accessing "localhost:8080" will access port 80 on the guest machine.
→ config.vm.network "forwarded_port", guest: 80, host: 8080

# Create a private network, which allows host-only access to the machine
# using a specific IP.
config.vm.network "private_network", ip: "192.168.33.10"

# Create a public network, which generally matched to bridged network.
# Bridged networks make the machine appear as another physical device on
# your network.
# config.vm.network "public_network"

# Share an additional folder to the guest VM. The first argument is
# the path on the host to the actual folder. The second argument is
# the path on the guest to mount the folder. And the optional third
# argument is a set of non-required options.
# config.vm.synced_folder "../data", "/vagrant_data"

# Provider-specific configuration so you can fine-tune various
# backing providers for Vagrant. These expose provider-specific options.
# Example for VirtualBox:
#
# config.vm.provider "virtualbox" do |vb|
# # Display the VirtualBox GUI when booting the machine
# vb.gui = true
#
# # Customize the amount of memory on the VM:
# vb.memory = "1024"
# end
#
# View the documentation for the provider you are using for more
# information on available options.

# Define a Vagrant Push strategy for pushing to Atlas. Other push strategies
# such as FTP and Heroku are also available. See the documentation at
# https://docs.vagrantup.com/v2/push/atlas.html for more information.
# config.push.define "atlas" do |push|
# push.app = "YOUR_ATLAS_USERNAME/YOUR_APPLICATION_NAME"
# end

# Enable provisioning with a shell script. Additional provisioners such as
# Puppet, Chef, Ansible, Salt, and Docker are also available. Please see the
# documentation for more information about their specific syntax and use.
# config.vm.provision "shell", inline: <<-SHELL
# apt-get update
# apt-get install -y apache2
# SHELL
end

[k.tada]

railsで利用している3000番のポートは開放していないのでしょうか？

[kerri_net]

おそらくしていないです。
このような方法で開放するのでしょうか？
http://to-developer.com/blog/?p=1572

[kerri_net]

ご指摘の通り、
config.vm.network "forwarded_port", guest: 80, host: 8080
を
config.vm.network :"forwarded_port", guest: 3000, host: 3000
に書き換えたらアクセスできました！

ありがとうございました。

[k.tada]

いえいえー