Pre-requisites for Configuring CloudEDGE CDN

Pre-requisites for configuring CloudEDGE CDN

Before enabling CloudEDGE CDN (also known as Webscale CDN) ensure that you meet the following pre-requisites in the order presented below.

Add the CDN provider as a trusted proxy

When you add the CDN provider as a trusted proxy for the application, the proxy can identify the original user IP addresses for requests coming from the CDN provider.

To add CloudFront as a trusted proxy, select Amazon CloudFront from the address set list in the Trusted proxies page. For information on how to add a trusted proxy, see Add trusted proxies.

For more information on requests for client IP addresses, see HTTP X-Forwarded-For Headers.

Set up DNS

To set up DNS

  1. Create aliases for all domains under the application. For information on how to view, add, and delete application aliases, see Application aliases in Configuring General Application Settings.
  1. Ensure that all domains under the application point toward Webscale, including top-level domains.
  2. Verify that the DNS entries are correct.
  3. Use the proxy hostname to create a CNAME for it.

Set up TLS

After DNS is enabled, make sure that the aliases for your application are correct and there are no unnecessary aliases. Delete all unnecessary aliases.

Then, set up TLS (Transport Layer Security) by enabling the Auto HTTPS feature for your application through the HTTPS page. When this feature is enabled, Webscale automatically obtains and installs a free Let’s Encrypt SSL certificate for the application.

Verify that the certificate covers all application aliases.

For information on how to enable Auto HTTPS, see Enable the Auto HTTPS feature in Installing SSL.

Disable PageSpeed

Web Controls enable you to configure and disable PageSpeed. If you do not already have a Web Control to configure PageSpeed, create a Web Control to disable it. For information on how to create a Web Control, see Creating Web Controls.

When creating or modifying a Web Control to disable PageSpeed, add or make sure that your Web Control has an action with the Set pagespeed options action type. In the Do you want pagespeed to run? drop-down menu, select No.

Disable pagespeed

Create an admin subdomain

If requests take longer than 180 seconds to execute, they will time out. This is a CloudFront limitation. The workaround is to bypass the admin domain from CloudFront. The first step is to separate the admin domain by creating an admin subdomain.

After you enable Webscale CDN, you must point the admin subdomain to where is the cname of the application.

For example, if the application is and the cname is, the admin subdomain will point to

Contact support to find out if this procedure applies to you.

Provider setup

When you are using Webscale CDN with CloudFront for an application, your account must have a Webscale provider with the Amazon EC2 cloud provider type. To set up the provider so it will support Webscale CDN, perform the following procedure.

  • Create a S3 bucket through AWS
  • Create a Webscale provider for your account with the Amazon EC2 cloud provider type

The S3 bucket will contain your Webscale CDN logs. When you create the provider, make sure that the provider can use Webscale CDN by selecting the Use for CDN checkbox in the Add a new provider dialog box. After you select the checkbox, you must also enter the S3 bucket name.

For information on how to add a provider, see Create providers in Working with Providers.

For information about Amazon EC2 cloud provider type settings, see Amazon EC2 in Provider settings.

For information on how to add an AWS S3 bucket, see Creating a Bucket.

Pre-requisite validation

After you have finished working on the pre-requisites, validate that you have followed all of the instructions correctly and fulfilled all of the pre-requisites.

Further reading

Have questions not answered here? Please Contact Support to get more help.

Last modified November 10, 2020