> For the complete documentation index, see [llms.txt](https://docs.prismacloud.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.prismacloud.io/admin-guide/33/vulnerability-management/registry-scanning/scan-coreos-quay.md).

# Scan CoreOS Quay Registry

To scan a repository in **CoreOS Quay**, configure the registry.

**Prerequisites**

* You have [installed a Defender](https://docs.paloaltonetworks.com/content/techdocs/en_US/prisma/prisma-cloud/prisma-cloud-admin-compute/install/deploy-defender/defender_types.html) somewhere in your environment.

## Configure a CoreOS Quay Registry Scan

1. Log in to Console, and select **Defend > Vulnerabilities > Images > Registry settings**.
2. Select **Add registry** and enter the details:
   1. In **Version**, select **CoreOS Quay**.
   2. In **Registry (Optional)** enter the Fully Qualified Domain Name (FQDN) for the CoreOS Quay registry server.

      To configure a self-hosted registry, enter an IP address, while for the SaaS version, provide the registry URL.
   3. In **Repository**, enter the name of the repository to scan.
   4. Optionally enter the **Repositories to exclude** them from being scanned.
   5. Enter **Tag** numbers to scan, leave blank, or enter a wildcard (\*) to scan all the tags.
   6. Optionally, enter **Tags to exclude**, to avoid scanning images with specified tags.
   7. In **Credential**, configure how Prisma Cloud authenticates with CoreOS Quay.

      Select the credential for CoreOS Quay from the drop-down list.

      If there are no credentials in the list, click **Add new** to create new credentials under **Manage > Authentication > Credentials Store**.
   8. In **OS type**, specify whether the repo holds **Linux** or **Windows** images.
   9. In **Scanners scope**, specify the collections of defenders to use for the scan.
   10. In **Number of scanners**, enter the number of Defenders across which scan jobs can be distributed.
   11. In **Cap**, limit the number of images to scan.

       Set **Cap** to **5** to scan the five most recent images, or enter a different value to increase or decrease the limit. Set **Cap** to **0** to scan all images.
3. Select **Add and scan**.

   Verify that the images in the repository are being scanned under **Monitor > Vulnerabilities > Images > Registries**.


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