Oracle Linux - Public Yum Repository V/s ULN

This post is to explain the difference between ULN ( and the Public Yum Repository (

You can patch your Oracle Linux servers using either ULN or the Public Yum repository and both offer the same patches or updates for Oracle Linux and Oracle VM.

1. Unbreakable Linux Network (

- If you have a subscription to Oracle Unbreakable Linux support, you can use the comprehensive resources of the Unbreakable Linux Network (ULN). - The ULN offers software patches, updates, and fixes for Oracle Linux and Oracle VM, as well as information on yum, Ksplice, and support policies. - You need a valid Customer Support Identifier (CSI) to register your server to ULN. After registration, It can manage the channel subscription for your Linux servers on the ULN Web Interface ( - For more information, please check “Unbreakable Linux Network User’s Guide” -

2. Public Yum Repository (

- The Oracle Linux yum server offers a free and convenient way to install the latest Oracle Linux packages as well as packages from the Oracle VM installation media via a yum client. - This yum server is offered without support of any kind. To manage the yum channel subscriptions, you need to configure the repository on the Linux server (yum client). - To start using the Public Yum Repository, please refer to the link - For more questions please refer to the FAQ page.