Proxy server Settings keep changing

Proxies and Acquia Cloud
LAN Proxy settings keep changing - Windows 8.1 | Windows 8 Forums

Complex websites are often handled by multiple web servers, all containing the same code. Sometimes, however, it can be necessary to split a website into multiple applications, all served from the same domain. For example, one application might serve but a special blogging tool is needed for

Because the DNS for has to point to a single place, you might simply create a directory named /blogs. This is not always possible, however — the main website's technology and the blog's technology may not be able to coexist on the same server, or perhaps different people need access to control the applications, and they need to be physically separated due to internal compliance regulations.

The primary way of handling multiple, separate websites served under a single domain is by using some form of proxy server, which is usually another server that handles requests from resources on servers by clients.

In the previous example, a specific type of proxy server (a reverse proxy server) is needed to bring the main website and the blog into the same URL-space. The reverse proxy server appears to visitors as a normal web server, and sends requests for different hosted items to the appropriate server. For more information about reverse proxy servers, see the Apache's mod_proxy documentation.

#Reference: on RewriteBase "/products/" RewriteRule "^widget/(.*)$" " " [P, L] ProxyPassReverse "/products/widget/" " "

This example proxies the request, only if the file or other resource cannot be found locally. This can be handy if you are migrating content from one sever to another, and you are unsure if all of the content has been migrated yet:

RewriteCond "%{REQUEST_FILENAME}" !-f RewriteCond "%{REQUEST_FILENAME}" !-d RewriteRule "^/(.*)" " " [P] ProxyPassReverse "/" " "

We have found that in Ubuntu Xenial, there the DirectoryIndex can sometimes be applied to proxy requests [P], which can lead to unexpected behavior. We've found that adding the following to the site's .htaccess file will resolve the problem

# ACQUIA: CL-17664: Apache 2.4 (in Xenial) changes how mod_rewrite handles # proxy requests ([P]), and DirectoryIndex ends up getting inappropriately # applied to them. This setting mirrors 2.2 behavior: DirectoryCheckHandler On

Use a CDN

Another option to consider is a content delivery network (CDN). A CDN may be better when a non-hosted website is struggling and holding open connections from Varnish. This can impact the ability for Acquia-hosted websites to be served, as well as other websites on the proxy configuration. By directing traffic at the CDN level, you can prevent performance issues. For more information, see Using a Content Delivery Network with Acquia Cloud.


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