Note: OpenID Connect (OIDC) and Conditional Access Policy (CAP) support for Enterprise Managed Users is in public beta and only available for Azure AD.
When your enterprise uses OIDC SSO, GitHub will automatically use your IdP's conditional access policy (CAP) IP conditions to validate user interactions with GitHub, when members change IP addresses, and each time a personal access token or SSH key is used.
CAP support is enabled automatically for any managed usersを持つEnterprise that enables OIDC SSO and cannot be disabled. GitHub enforces your IdP's IP conditions but not device compliance conditions.
We recommend disabling your enterprise account's IP allow list and relying on your IdP's CAP. If you enable IP allow lists for your enterprise and also make use of your IdP's CAP, both the IP allow list and CAP will be enforced. If either restriction rejects a user's IP address, the request fails. For more information about IP allow lists, see "Enforcing policies for security settings in your enterprise."
GitHub sends the originating IP address to your IdP for validation against your CAP. To make sure actions and apps are not blocked by your IdP's CAP, you will need to make changes to your configuration.
Warning: If you use GitHub Enterprise Importer to migrate an organization from GitHub Enterprise Server インスタンス, make sure to use a service account that is exempt from Azure AD's CAP otherwise your migration may be blocked.
Actions that use a personal access token will likely be blocked by your IdP's CAP. We recommend that personal access tokens are created by a service account which is then exempted from IP controls in your IdP's CAP.
If you're unable to use a service account, another option for unblocking actions that use personal access tokens is to allow the IP ranges used by GitHub Actions. 詳しい情報については「GitHubのIPアドレスについて」を参照してください。
When GitHub Apps and OAuth App make requests on a member's behalf, GitHub will send the IP address of the app's server to your IdP for validation. If the IP address of the app's server is not validated by your IdP's CAP, the request will fail.
You can contact the owners of the apps you want to use, ask for their IP ranges, and configure your IdP's CAP to allow access from those IP ranges. If you're unable to contact the owners, you can review your IdP sign-in logs to review the IP addresses seen in the requests, then allow-list those addresses.
You can also enable IP allow list configuration for installed GitHub Apps. When enabled, all GitHub Apps and OAuth App will continue working regardless of the originating IP address. 詳しい情報については、「Enterprise にセキュリティ設定のポリシーを適用する」以下を参照してください。