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Important firewall changes for customers pulling IBM Cloud Pak and other container images

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IBM container image registries are changing and you might need to adjust your firewall settings by August 15, 2023, or you might lose access to IBM container content such as IBM Cloud Paks and other container images. The addition of these domain entries accommodates future changes that might issue a redirect for certain requests such as an image layer download for traffic optimization.

If you use a public network to access the IBM Cloud Container Registry by using the domains cp.icr.io and icr.io, you must add the following hostnames to your firewall rules:

  • dd0.icr.io
  • dd2.icr.io
  • dd4.icr.io
  • dd6.icr.io

Users that are located in China must also allow the following hostnames:

  • dd1-icr.ibm-zh.com
  • dd3-icr.ibm-zh.com
  • dd5-icr.ibm-zh.com
  • dd7-icr.ibm-zh.com

You can also add wildcard characters to hostnames in your allowlist, if permitted by your respective IBM Cloud Pak (for example *.icr.io and *.ibm-zh.com). For more detailed information on IBM Cloud Pak domain and port settings, see Installing your IBM Cloud Pak by mirroring Cloud Pak images to a private container registry.

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Document Information

Modified date:
17 July 2023

UID

ibm17011263