> ## Documentation Index
> Fetch the complete documentation index at: https://gcore-doc-1046.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Use storage as the origin for your CDN resource

## Use as an origin

### Use object storage

1\. Go to the [CDN](https://portal.gcore.com/cdn/resources/list) tab and press **Create CDN resource**.

<Frame>
  <img src="https://mintcdn.com/gcore-doc-1046/pDjFGIQWAQ3p66q7/images/docs/storage/use-storage-with-cdn/create-cdn-resource-10.png?fit=max&auto=format&n=pDjFGIQWAQ3p66q7&q=85&s=976d949cca8aa926402078d2fdea3b01" alt="CDN resource" width="3574" height="1476" data-path="images/docs/storage/use-storage-with-cdn/create-cdn-resource-10.png" />
</Frame>

2\. Select which Object Storage you want to use as a content source: public or private - and follow the instructions.

<Accordion title="Public">
  <Frame>
    <img src="https://mintcdn.com/gcore-doc-1046/pDjFGIQWAQ3p66q7/images/docs/storage/use-storage-with-cdn/image3527.png?fit=max&auto=format&n=pDjFGIQWAQ3p66q7&q=85&s=94d66cd1e598448fac514495156c4f2b" alt="Set up initial configuration" width="1740" height="2572" data-path="images/docs/storage/use-storage-with-cdn/image3527.png" />
  </Frame>

  1\. Select the **Specify content origin** option.

  2\. Select **None** in the "Type of origin authentication" option.

  3\. Specify the path to your bucket in following format: `http(s)://<bucket-name>.<location>.cloud.gcore.lu`. More details in the "[Request content directly from the Object Storage](/storage/use-storage-as-the-origin-for-your-cdn-resource#s3-storage-is-the-origin)" section below.

  4\. Specify custom domain, e.g., *cdn.example.com*. Read more about the personal domain setup in the "[Create and set a custom domain for the content delivery via CDN](/cdn/cdn-resource-options/general/create-and-set-a-custom-domain-for-the-content-delivery-via-cdn)" guide.
</Accordion>

<Accordion title="Private">
  If you want to use a private bucket instead of a public S3 bucket, follow our guide on how to [use a private bucket as an origin](/cdn/cdn-resource-options/general/use-a-private-bucket-as-an-origin).
</Accordion>

### Use SFTP storage

Go to the [CDN](https://portal.gcore.com/cdn/resources/list) tab and press **Create CDN resource**.

<Frame>
  <img src="https://mintcdn.com/gcore-doc-1046/pDjFGIQWAQ3p66q7/images/docs/storage/use-storage-with-cdn/create-cdn-resource-10.png?fit=max&auto=format&n=pDjFGIQWAQ3p66q7&q=85&s=976d949cca8aa926402078d2fdea3b01" alt="Use SFTP storage" width="3574" height="1476" data-path="images/docs/storage/use-storage-with-cdn/create-cdn-resource-10.png" />
</Frame>

To specify the Origin Source, use the following schema:

`<storage name>.<hostname>`

Both name and hostname can be found on the Storage tab > Storages > Details.

<Frame>
  <img src="https://mintcdn.com/gcore-doc-1046/pDjFGIQWAQ3p66q7/images/docs/storage/use-storage-with-cdn/use-sftp-as-origin-40.png?fit=max&auto=format&n=pDjFGIQWAQ3p66q7&q=85&s=825528aaa4e64ccbcc042929ba157a34" alt="Set up initial configuration" width="1644" height="2138" data-path="images/docs/storage/use-storage-with-cdn/use-sftp-as-origin-40.png" />
</Frame>

If your storage name is 12345-test and your hostname is *ams.origin.gcdn.co*, you should specify *12345-test.ams.origin.gcdn.co* as the Origin Source. Read more about personal domain setup in the "[Create and set a custom domain for the content delivery via CDN](/cdn/cdn-resource-options/general/create-and-set-a-custom-domain-for-the-content-delivery-via-cdn)" guide.

## Request content from CDN

### Object storage is the origin

An addressing scheme where you specify the bucket at the beginning `<bucket-name>.<location>.cloud.gcore.lu` allows you to increase the security of your CDN usage because you hide the Hostname of your repository.

Use the following schema to request uploaded files:

`http(s)://<Custom domain>/<folder*>/<file>`

\*If the folder was created in the bucket. If files were added to the root of the bucket - specify file names.

For example, you've:

* used a bucket *mybucket*, S3 storage in the Luxembourg location *s-ed1.cloud.gcore.lu*
* created a CDN resource for the storage with the Custom domain with *cdn.example.com*.

To request file *picture.png*, which was uploaded into the bucket, from CDN use the following URL:

`http://cdn.example.com/picture.png`

**Note** : By default, created buckets and all the stored files in buckets are private. To make a file public, read [the article on ACL and policy](/storage/manage-object-storage/configure-aws-sli-s3cmd-and-aws-javascript-sdk/configure-access-control-on-s3-storage-with-aws-cli-and-s3cmd) or [official documentation](https://docs.aws.amazon.com/AmazonS3/latest/dev/acl-overview.html#canned-acl).

### SFTP storage is the origin

Upload your files to the htdocs directory, but don't specify the directory when requesting the content.

Path to the uploaded file in the storage:

`sftp://12345-test@ams.origin.gcdn.co:2200/export/home/12345-test/htdocs/picture.png`

If the CDN Custom domain is *cdn.example.com*, the URL to request the file from CDN will be:

`http://cdn.example.com/picture.png`