IGEL OS 11.06.250 IGEL OS Articles Miscellaneous Passthrough Authentication Session Configuration Current: Horizon Client PDF Download PDF Download page Horizon Client. Current page All pages Horizon Client For Horizon sessions, passthrough is supported. Kerberos passthrough is not yet supported.Go to Sessions > Horizon Client > Horizon Client Sessions > [session name] > Connection settings.Enable Use passthrough authentication for this session. ×