These 2 parameters are required by the Sitecore.Owin.Authentication.Pipelines.Initialize.HandlePostLogoutUrl pipeline, that triggers a cleanup on the Sitecore side after IdentityServer4 redirects when logging out. With ASP.NET 5, Microsoft started providing a different, more flexible validation mechanism called ASP.NET Identity. These 2 parameters are required by the Sitecore.Owin.Authentication.Pipelines.Initialize.HandlePostLogoutUrl pipeline, that triggers a cleanup on the Sitecore side after IdentityServer4 redirects when logging out. Journal of Animal Science, 74(11), 2843-2848. We recommend that you use the  /sitecore or /sitecore/admin URLs to access Sitecore, and that you use the Logout button to sign out or change to another user. Alternatively, patch the legacyShellLoginPage property of the InterceptLegacyShellLoginPage processor to some random value.Â. These features build upon OWIN authentication middleware. The URL for this new login endpoint has this format: $(loginPath)/{site_name}/{identity_provider}[/{inner_identity_provider}], where: $(loginPath) is a configuration variable ($(identityProcessingPathPrefix)login = /identity/login). This pipeline retrieves a list of sign-in URLs with additional information for each corresponding identity provider in this list. 171219 (9.0 Update-1). When you authenticate users through external providers, Sitecore creates and authenticates a virtual user with proper access rights. 171002 (Initial Release): SC Hotfix 204620-1 Sitecore CES 2.1.0.zip For Sitecore XP 9.0 rev. An account connection allows you to share profile data between multiple external accounts on one side and a persistent account on the other side. Would you like to attach to the user or create new record?,