无法连接到 Fedora 21 上的 rails 服务器

Question

我开始 rails server 但 http://192.168.56.104:3000 不可用。它的地址是正确的，因为我可以在http://192.168.56.104:80.

看到Apache的测试页面

我启动了服务器：

$ rails s
Warning: Running `gem pristine --all` to regenerate your installed gemspecs (and deleting then reinstalling your bundle if you use bundle --path) will improve the startup performance of Spring.
=> Booting WEBrick
=> Rails 4.2.0 application starting in development on http://localhost:3000=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
[2015-03-10 09:45:49] INFO  WEBrick 1.3.1
[2015-03-10 09:45:49] INFO  ruby 2.1.5 (2014-11-13) [x86_64-linux]
[2015-03-10 09:45:49] INFO  WEBrick::HTTPServer#start: pid=5512 port=3000

那么它正在工作：

# wget http://localhost:3000; head index.html 
--2015-03-10 09:53:39--  http://localhost:3000/
Resolving localhost (localhost)... ::1, 127.0.0.1
Connecting to localhost (localhost)|::1|:3000... connected.
HTTP request sent, awaiting response... 200 OK
Length: 14935 (15K) [text/html]
Saving to: ‘index.html’

index.html         100%[=================>]  14.58K  --.-KB/s   in 0.001s 

2015-03-10 09:53:39 (18.1 MB/s) - ‘index.html’ saved [14935/14935]

<!DOCTYPE html>
<html>
  <head>
    <title>Ruby on Rails: Welcome aboard</title>
    <style media="screen">
      body {
        margin: 0;
        margin-bottom: 25px;
        padding: 0;
        background-color: #f0f0f0;

IP:

# ip r
default via 10.0.2.2 dev enp0s3  proto static  metric 1024 
10.0.2.0/24 dev enp0s3  proto kernel  scope link  src 10.0.2.15 
192.168.56.0/24 dev enp0s8  proto kernel  scope link  src 192.168.56.104

防火墙设置为：

# firewall-cmd --list-all
FedoraServer (default, active)
  interfaces: enp0s3 enp0s8
  sources: 
  services: cockpit dhcpv6-client http ssh
  ports: 
  masquerade: no
  forward-ports: 
  icmp-blocks: 
  rich rules:

和：

# firewall-cmd --permanent --zone=FedoraServer --list-all
FedoraServer (default)
  interfaces: 
  sources: 
  services: cockpit dhcpv6-client http ssh
  ports: 
  masquerade: no
  forward-ports: 
  icmp-blocks: 
  rich rules:

和：

# cat /etc/firewalld/services/http.xml 
<?xml version="1.0" encoding="utf-8"?>
<service>
  <short>WWW (HTTP)</short>
  <description>HTTP is the protocol used to serve Web pages. If you plan to make your Web server publicly available, enable this option. This option is not required for viewing pages locally or developing Web pages.</description>
  <port protocol="tcp" port="3000"/>
  <port protocol="tcp" port="80"/>
</service>

我正在使用 Fedora 21。

# cat /etc/fedora-release 
Fedora release 21 (Twenty One)

我应该检查和修复什么？

Answer 1

已解决！我必须将 -b 用于 rails 服务器才能在本地主机上工作。

$ rails s -b 0.0.0.0

已更改：https://github.com/rack/rack/commit/28b014484a8ac0bbb388e7eaeeef159598ec64fc

无法连接到 Fedora 21 上的 rails 服务器

Cannot connect to rails server on Fedora 21

ruby-on-rails

fedora