Nginx Dynamic Error Pages
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Up Log In submit View All Results By: Justin Ellingwood Subscribe Subscribed nginx error page redirect Share Contents Contents We hope you find this tutorial helpful. In addition to guides like this one,
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we provide simple cloud infrastructure for developers. Learn more → 9 How To Configure Nginx to Use Custom Error Pages on Ubuntu 14.04 Posted Jun 5, 2015 81.6k nginx custom error page not working views Nginx Ubuntu Introduction Nginx is a high performance web server capable of serving content with flexibility and power. When designing your web pages, it is often helpful to customize every piece of content that your users will see. This includes error pages for when they request content that is not available. In this guide, we'll error_page 404 nginx demonstrate how to configure Nginx to use custom error pages on Ubuntu 14.04. Prerequisites To get started on with this guide, you will need a non-root user with sudo privileges. You can set up a user of this type by following along with our initial set up guide for Ubuntu 14.04. You will also need to have Nginx installed on your system. Learn how to set this up by following this guide. When you have completed the above steps, continue with this guide. Creating Your Custom Error Pages We will create a few custom error pages for demonstration purposes, but your custom pages will obviously be different. We will put our custom error pages in the /usr/share/nginx/html directory where Ubuntu's Nginx sets its default document root. We'll make a page for 404 errors called custom_404.html and one for general 500-level errors called custom_50x.html. You can use the following lines if you are just testing. Otherwise, put your own content in these locations:
- echo "
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App Store Developer Blog Community Blog Developer Tools Support Start For Free How it works: nginx and error pages Hans van Kranenburg on December 26, 2014 Share: In the week before christmas, we released a nice
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little extension to our hosting platform: It’s now possible to use customized error pages for nginx custom 404 page an application. This blog post will show how web server configuration for applications is done at Mendix, and how this additional
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feature is implemented, on top of it. If you’re only interested in how to use the custom error page feature, and not in how it’s built, read the custom error pages blog post on the corporate https://www.digitalocean.com/community/tutorials/how-to-configure-nginx-to-use-custom-error-pages-on-ubuntu-14-04 tech blog. Green Monsters! If you’re using or maintaining a Mendix application that runs in the Mendix hosting environment, you might have seen them occasionally… The green monsters, running around, eating computers and modems. While we often call them “the green monsters”, these animals are actually called TumblBeasts and were created by The Oatmeal as a gift for Tumblr to use in their error pages. Unfortunately, Tumblr stopped using them after https://www.mendix.com/blog/works-nginx-error-pages/ a while, and the creator of them told whoever would want to could use the images. Here’s the most famous page of a set of pages that we’ll discuss in a bit. It’s the page that is shown when a deployed application is stopped: Let’s dive in… Actually, four different green monsters pages currently exist, containing different text, shown in different occasions. In order to understand why, and what they mean, let’s have a look at a simplified view on the web server configuration we use to serve applications over HTTPs to the world: The front facing web server listens on the actual public IP address where your application url points at, and directly handles all browser connections for multiple different applications. The front facing web server knows about every existing application url attached to running applications, and knows where they are running in the internal network behind it. The appnode web server is an nginx instance that is running on the application server where the actual Mendix Runtime process is started as well. Front facing web server configuration Let’s follow the arrows and see what kind of problematic situations we could encounter. In the previous paragraph, I mentioned that the front facing web server listens on IP addresses. These addresses are not
so that error pages work for all types of requests, not justGET. Normally, 404 and 500 error pages are static HTML https://mattbrictson.com/dynamic-rails-error-pages files that live in the public directory of a Rails application. https://t37.net/the-good-the-bad-and-the-ugly-of-virtual-hosting-with-nginx.html These are boring, minimally-styled pages that don’t get the same treatment as the rest of the app. This tutorial shows you how to move error pages into your Rails app as dynamic views that benefit from application styles, layouts, and viewhelpers. tl;dr error page – jump to the Rails code and the Capistrano bonustip Why are dynamic error pages paticularly handy in Rails4? Starting with Rails 4, the production asset pipeline no longer generates filenames without cache-busters. This means that referencing /assets/application.css in your static public/404.html page won’t work in a Rails 4 app! The file will not page not working exist in the production environment. The only way to reliably reference your application stylesheet is to use the stylesheet_link_taghelper. But error pages are static HTML pages; they can’t use helpers, right? If you want nice-looking error pages in Rails 4, here are youroptions: Option 1: No external styles. Don’t reference your application stylesheet at all. Instead, use simple, static error pages with the necessary minimal CSS copied and pasted into each HTML file. This is the solution that ships withRails. Works for simple apps that don’t need custom-branded errorpages. Option 2: Monkey patch. Use static error pages and point to /assets/application.css for styling. Then, monkey-patch Rails to restore the pre-Rails 4 behavior so that the asset pipeline generates non-cache-busted filenames in production. Make sure not to send far-future expires headers for thesefiles! Easiest option for migrating an existing app to Rails4. Option 3: Dynamic. Use dynamic view templates (ERB) for error pages, and take advantage of the s
Lighttpd twisted Perl like configuration, Nginx simplicity was a relief. Last week, a friend of mine asked me for some help to setup a Web server for a school project. They're teaching pupils HTML and CSS and she wanted each of them to have their own space to test what they've done. There was one problem: she doesn't know anything about system administration. So I had to setup something where she would not touch the configuration or restart Nginx. The idea was simple: I wanted to add as many sites as I wanted without adding a configuration file or restarting Nginx. Challenge accepted. Things going on, I was thinking further and further, testing more and more things to know where I could go. Dynamic vhosts for static sites Dynamic vhosts for Ruby on Rails apps with Passenger Dynamic vhosts with multiple backends Dynamic vhosts with SSL support Dynamic vhosts with their own error pages (and fallback) Dynamic vhosts with separated logging Dynamic vhosts with basic auth I setup different configurations and found out some things were possible and some other were not because of how Nginx handles some . 1. The good: dynamic vhosts for static sites The following configuration file is a very basic setup for static Web sites. There's no backend here, no SSL, nothing fancy, the only goal was to check the setup works (and it does). server { listen 80; server_name _; set $site_root /data/www/$host; location / { root $site_root; } error_log /var/log/nginx/error.log info; access_log /var/log/nginx/access.log; } server_name _ The `_` server_name is a _catch all_, which means it will process every query. If you want to process subdomains of your domain name, you can use `*.platyp.us` instead of `_` $site_root The location where sites are hosted. Using the `$host` variable allows to set that configuration directive dynamically. So `foo.bar` is hosted in `/data/www/foo.bar/`. Note that $site_root is a user defined variables we use to avoid repeating ourselves. $host is a Nginx variable. 2. The bad: dynamic vhosts for Ruby on Rails apps with Passenger If you want to host Ruby on Rails Web sites, Phusion Passenger mod_rails is a nice and convenien