请问现在这个还能签发证书么？

我输入

acme.sh --issue -d subdomain.domain.com --webroot /home/app/public 

之后得到 challenge 不存在的报错，但我十分确定目录没问题，查看没有 challenge 因为是它自动完成后删除了，以下是 log

Changing owner/group of .well-known to root:root
[Thu Aug 17 15:06:09 CST 2017] url='https://acme-v01.api.letsencrypt.org/acme/challenge/u0FsYtePfxD34xYlhDA_dqdvYhMIHnybo_vx30r56wA/1769980106'
[Thu Aug 17 15:06:09 CST 2017] payload='{"resource": "challenge", "keyAuthorization": "MAkvAMKQ3bCT3it0-sx4ZufmZxtEsTkUncsAqVy-iRw._VvrU6EE4CB0GRLOlaXCczJU63JAchPg8nrv4mbtF7w"}'
[Thu Aug 17 15:06:09 CST 2017] POST
[Thu Aug 17 15:06:09 CST 2017] url='https://acme-v01.api.letsencrypt.org/acme/challenge/u0FsYtePfxD34xYlhDA_dqdvYhMIHnybo_vx30r56wA/1769980106'
[Thu Aug 17 15:06:09 CST 2017] _CURL='curl -L --silent --dump-header /root/.acme.sh/http.header '
[Thu Aug 17 15:06:11 CST 2017] _ret='0'
[Thu Aug 17 15:06:11 CST 2017] code='202'
[Thu Aug 17 15:06:11 CST 2017] sleep 2 secs to verify
[Thu Aug 17 15:06:13 CST 2017] checking
[Thu Aug 17 15:06:13 CST 2017] GET
[Thu Aug 17 15:06:13 CST 2017] url='https://acme-v01.api.letsencrypt.org/acme/challenge/u0FsYtePfxD34xYlhDA_dqdvYhMIHnybo_vx30r56wA/1769980106'
[Thu Aug 17 15:06:13 CST 2017] timeout

好象是获取 api 失败了，这是脚本的问题么？

不是脚本的问题，我 public 路径没有配置好

大神你说的太对了，重启好了

还好我服务器有备份。。。那我换个服务器？

require "sport"
NameError: uninitialized constant ApplicationRecord
        from /home/sports_meeting/app/models/sport.rb:1:in `<top (required

这回更奇怪。。。

/home/sports_meeting/lib
/home/sports_meeting/vendor
/home/sports_meeting/app/assets
/home/sports_meeting/app/channels
/home/sports_meeting/app/controllers
/home/sports_meeting/app/controllers/concerns
/home/sports_meeting/app/helpers
/home/sports_meeting/app/jobs
/home/sports_meeting/app/mailers
/home/sports_meeting/app/models
/home/sports_meeting/app/models/concerns
/usr/local/rvm/gems/ruby-2.2.2/gems/turbolinks-5.0.1/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/jquery-rails-4.2.2/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/jquery-rails-4.2.2/vendor
/usr/local/rvm/gems/ruby-2.2.2/gems/coffee-rails-4.2.1/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/actioncable-5.0.2/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/bundler-1.14.3/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/spring-2.0.1/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/web-console-3.4.0/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/uglifier-3.1.9/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/turbolinks-source-5.0.0/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/sqlite3-1.3.13/lib
/usr/local/rvm/gems/ruby-2.2.2/extensions/x86_64-linux/2.2.0/sqlite3-1.3.13
/usr/local/rvm/gems/ruby-2.2.2/gems/spring-watcher-listen-2.0.1/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/sass-rails-5.0.6/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/tilt-2.0.7/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/sass-3.4.23/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/rails-5.0.2/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/sprockets-rails-3.2.0/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/sprockets-3.7.1/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/puma-3.8.2/lib
/usr/local/rvm/gems/ruby-2.2.2/extensions/x86_64-linux/2.2.0/puma-3.8.2
/usr/local/rvm/gems/ruby-2.2.2/gems/listen-3.0.8/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/rb-inotify-0.9.8/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/rb-fsevent-0.9.8/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/jbuilder-2.6.3/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/multi_json-1.12.1/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/ffi-1.9.18/lib
/usr/local/rvm/gems/ruby-2.2.2/extensions/x86_64-linux/2.2.0/ffi-1.9.18
/usr/local/rvm/gems/ruby-2.2.2/gems/debug_inspector-0.0.2/lib
/usr/local/rvm/gems/ruby-2.2.2/extensions/x86_64-linux/2.2.0/debug_inspector-0.0.2
/usr/local/rvm/gems/ruby-2.2.2/gems/railties-5.0.2/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/thor-0.19.4/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/method_source-0.8.2/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/coffee-script-2.4.1/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/execjs-2.7.0/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/coffee-script-source-1.12.2/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/byebug-9.0.6/lib
/usr/local/rvm/gems/ruby-2.2.2/extensions/x86_64-linux/2.2.0/byebug-9.0.6
/usr/local/rvm/gems/ruby-2.2.2/gems/bcrypt-3.1.11/lib
/usr/local/rvm/gems/ruby-2.2.2/extensions/x86_64-linux/2.2.0/bcrypt-3.1.11
/usr/local/rvm/gems/ruby-2.2.2/gems/activerecord-5.0.2/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/arel-7.1.4/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/activemodel-5.0.2/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/actionmailer-5.0.2/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/mail-2.6.4/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/mime-types-3.1/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/mime-types-data-3.2016.0521/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/activejob-5.0.2/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/globalid-0.3.7/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/websocket-driver-0.6.5/lib
/usr/local/rvm/gems/ruby-2.2.2/extensions/x86_64-linux/2.2.0/websocket-driver-0.6.5
/usr/local/rvm/gems/ruby-2.2.2/gems/websocket-extensions-0.1.2/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/nio4r-2.0.0/lib
/usr/local/rvm/gems/ruby-2.2.2/extensions/x86_64-linux/2.2.0/nio4r-2.0.0
/usr/local/rvm/gems/ruby-2.2.2/gems/actionpack-5.0.2/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/rack-test-0.6.3/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/rack-2.0.1/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/actionview-5.0.2/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/rails-html-sanitizer-1.0.3/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/loofah-2.0.3/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/rails-dom-testing-2.0.2/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/nokogiri-1.7.1/lib
/usr/local/rvm/gems/ruby-2.2.2/extensions/x86_64-linux/2.2.0/nokogiri-1.7.1
/usr/local/rvm/gems/ruby-2.2.2/gems/mini_portile2-2.1.0/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/erubis-2.7.0/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/builder-3.2.3/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/activesupport-5.0.2/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/tzinfo-1.2.2/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/thread_safe-0.3.6/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/minitest-5.10.1/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/i18n-0.8.1/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/concurrent-ruby-1.0.5/lib
/usr/local/rvm/gems/ruby-2.2.2/gems/rake-12.0.0/lib
/usr/local/rvm/rubies/ruby-2.2.2/lib/ruby/site_ruby/2.2.0
/usr/local/rvm/rubies/ruby-2.2.2/lib/ruby/site_ruby/2.2.0/x86_64-linux
/usr/local/rvm/rubies/ruby-2.2.2/lib/ruby/site_ruby
/usr/local/rvm/rubies/ruby-2.2.2/lib/ruby/vendor_ruby/2.2.0
/usr/local/rvm/rubies/ruby-2.2.2/lib/ruby/vendor_ruby/2.2.0/x86_64-linux
/usr/local/rvm/rubies/ruby-2.2.2/lib/ruby/vendor_ruby
/usr/local/rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0
/usr/local/rvm/rubies/ruby-2.2.2/lib/ruby/2.2.0/x86_64-linux

这个是 LOAD_PATH...看起来没什么不对的....

试过了，一样的结果，console 表示根本没不认识这些 Model

其实我也没考虑那么多，买的时候啥都不懂，但是以前去新泽西旅游过结果就选那了。。。

现在打算办到东京看看

是么，我试试

其实也不是完全跑网站，还想用它干点别的。。。

唉，真的感觉国内也没便宜多少，linode 150 元/月 2 核 4G 有备份

阿里，腾讯什么的同样价位还没有。。。。

嗯，听说过这家，挺有名的。目前纠结是再寻找 cdn 还是换服务器了

啊，各位，我蠢了，配置域名的关键在于 server_name，正确配置如下：

upstream app1{
 server unix:/..../puma.sock;
}
upstream app2{
  server unix:/.../puma.sock;
}

server{
  listen 80;
  server_name a.xxx.com;
    location / {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;
    proxy_pass http://myapp;
    }
}

server{
  listen 80;
  server_name b.xxx.com;
    location / {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;
    proxy_pass http://myapp2;
    }
}

其实根本不需要担心两个 80 端口会冲突什么的，两个项目的运行是用 socks 进行代理的。 决定访问哪个域名去哪里的，最关键的还是 server_name 这一项

自己之前猜想太多，这次一实践立刻就明白了，谢谢@flowerwrong

唉，其实就是自己想用 socks 才会出这样的问题，把 puma 用 tcp 端口绑定应该就没问题了。虽然慢一点，但是应该能跑多个项目。

You mean I should change proxy_pass to the domain I want?

eg. change http://app1 to http://app1.mydomain.com ?

or change listen ports enter listen 80 in the first server and listen 3030 in the second?

I know what you mean.... I just want to know how can nginx rediret to different upstream eg. a.xxx.com goto app1 b.xxx.com goto app2

upstream app {
    # Path to Puma SOCK file, as defined previously
    server unix:/home/deploy/appname/shared/sockets/puma.sock fail_timeout=0;
}

I imitate a tutorial like this. When I multi my upstream and access public ip, how can nginx rediret to different apps?

太神了，你说的没错，看来我对 turbolinks 了解的太少 qaq

你是指内存免费乘 2 那个么？那个需要手动配置一下就好了

大一狗看的心花怒放 十分适合初学者理解 dijkstra 算法工作流程的文章！

还有以下一个小错误？10 是不是改成 100

假设从 S 到 U 的距离是 10，那么计算前 99 个哑节点的距离，都是没有意义的。

#1 楼 @flowerwrong Thank you very much! It did work! I can't even find solution on stackoverflow.

#19 楼 @adamshen 谢谢你，现在我已经知道自己错在哪里了。其实我运行 precompile 了，assets.rb 里面该加的也加了。只是我的服务器是 nginx，需要设置：

config.serve_static_assets = false

因为 jquery 这些 js 理论上是不用单独进行预编译的，我也很奇怪为什么浏览器会报错但是网页 js 加载的好好的......

#17 楼 @adamshen 在开发环境下这些 css，js 都不会出现 404 的情况，毕竟我也没有使用 assets pipeline 但是在生产环境下，一些 gem 里配有的 css，js 就算我在 application.js/css 文件中 require 它们，会报错但不会影响网站 js/css 实现 比如： jquery-0ed465fbecf04ae913ca41ffdb083e24.js?body=1 GET 404 script (index):7 0 B 305 ms
jquery_ujs-90e9e71c91e43e7dad56d420bfb0f0c3.js?body=1 GET 404 script (index):8 0 B 829 ms
jquery.turbolinks-bf4145241a1f3c33ca16fcd46ca39409.js?body=1 GET 404 script (index):9 0 B 909 ms
turbolinks-3c4430349c04dd08ce7d3819bb2e7064.js?body=1 GET 404 script (index):10 0 B 909 ms
nprogress-265ad313635e9ccba89a71ddb330936e.js?body=1 GET 404 script (index):11 0 B 973 ms
nprogress-turbolinks-f33e6cee88a5842ce94cdf138ec989f2.js?body=1 GET 404 script (index):12 0 B 995 ms
这些都是 gem 提供的 js，它们能发挥作用，但是会在加载的时候报错 404，使网站访问变慢 我怀疑它们已经进入 application.js 里面了，所以功能可以实现，但是为什么会找不到呢？

#4 楼 @1c7 抱歉回的晚了。用的是 linode，第二次 2800ms 即可，第一次卡一分钟

#13 楼 @hww 我知道，我已经加进去了，但是我想问一下为什么要加进去？ 因为我已经把 home.js 放在 assets/javascripts/文件夹下了

明白了，那我目前不打算再用 cap 了。我想问一下： = javascript_include_tag "home", "data-turbolinks-track" => true 这段代码写出来后，为何我再 application require 了 home 依然报错 提示是： Rails.application.config.assets.precompile += %w( home.js ) 必须要这么做么？ 还有我有些晕，application.js 的生成不是把所有的 js 合并成 application-指纹.js 了么？ 那为何还会有 home-指纹.js jquery-指纹.js 这些东西呢？

谢谢大家的帮助。我现在正在自学 Assets pipeline 我想问一下 rake assets:precompile 和另外一个 gem capistrano 有什么关系？二者可不可以一起用？

#1 楼 @ailen 谢谢，我通过这个 DEBUG 工具看了一下，发现 rails 在获取几个 js 的时候花费时间大于 1s jquery.ui.widget-da1b9b310f5b48a4ef262815b8965d91.js?body=1 GET 404 script (index):41 0 B 4.49 s
jquery.iframe-transport-3d6f14f09aa72eb4e09e47e851ceb0d8.js?body=1 GET 404 script (index):42 0 B 4.57 s
jquery.fileupload-6958164ac1bf6b96d360ed7c52426bb1.js?body=1 GET 404 script (index):43 0 B 4.81 s
basic-499ed96f03a6499972f0e9f358d0a7c0.js?body=1 GET 404 script (index):44 0 B 5.37 s
tmpl-ea45f6b1f117c1f3d1578495b7ca7bca.js?body=1 GET 404 script (index):45 0 B 5.45 s
qiniu_direct_uploader-c5b052baa6c8f49526d2d2f26293f6b9.js?body=1 GET 404 script (index):46 0 B 4.92 s
home-92d23ecf60c9ec6be8cc0fe6c10064e8.js?body=1 GET 304 script (index):47 232 B 5.13 s
但是好像页面上正在运行的 js 并没有受到影响 请问 rails 是怎么处理 js 获取的？ 如果有讲这方面的资料，我也乐意自学一下。

#1 楼 @farthinker 如你所说，版本问题。很奇怪为啥 mycolorway 不官方弄个专门给 ruby on rails 的 gem，我用的民间 gem 又是 10 个月不更新，bug 都暴露出来了

#2 楼 @billy tmp 确实在 rails app 里面，权限该怎么设置呢？我不太会

#1 楼 @huobazi 哦哦哦，原作者出现了。我怎么也没有想到是 gem 版本不同的问题，结果还真是这个问题，虽然 0.0.5 看起来更好使，我还是使用了 0.0.4。实在感谢您写的 gem，还有对我这个蠢新手的热心指导。