Configuring authentication servicesThis section includes the following topics:About configuring LDAP settingsConfiguring LDAP server settingsAdministering the Access Appliance cluster's LDAP clientAbout Active Directory (AD)Configuring AD server settingsConfiguring entries for Access Appliance DNS for authenticating to Active Directory (AD)Configuring AD/LDAP using the GUIConfiguring the NIS-related settingsConfiguring NSS lookup orderSign-in options for the Access Appliance UIConfiguring user authentication using digital certificates or smart cards