The authconfig tool can help configure what kind of data store to use for user credentials, such as LDAP. On Red Hat Enterprise Linux, authconfig has both GUI and command-line options to configure 8CHAPTER 2. CONFIGURING SYSTEM AUTHENTICATION any user data stores. The authconfig tool can configure the system to use specific services — SSSD, LDAP, NIS, or Winbind — for its user database, along with using different forms of authentication mechanisms. IMPORTANT To configure Identity Management systems, Red Hat recommends using the ipa- client-install utility or the realmd system instead of authconfig. The authconfig utilities are limited and substantially less flexible. For more information, see Section 2.1, “Identity Management Tools for System Authentication”. The following three authconfig utilities are available for configuring authentication settings: authconfig-gtk provides a full graphical interface. authconfig provides a command-line interface for manual configuration. authconfig-tui provides a text-based UI. Note that this utility has been deprecated. All of these configuration utilities must be run as root.