Buscar

Este contenido no está disponible en el idioma seleccionado.

1.3. Available Services

download PDF
All Red Hat Enterprise Linux systems have some services already available to configure authentication for local users on local systems. These include:
Authentication Setup
  • The Authentication Configuration tool (authconfig) sets up different identity back ends and means of authentication (such as passwords, fingerprints, or smart cards) for the system.
Identity Back End Setup
  • The Security System Services Daemon (SSSD) sets up multiple identity providers (primarily LDAP-based directories such as Microsoft Active Directory or Red Hat Enterprise Linux IdM) which can then be used by both the local system and applications for users. Passwords and tickets are cached, allowing both offline authentication and single sign-on by reusing credentials.
  • The realmd service is a command-line utility that allows you to configure an authentication back end, which is SSSD for IdM. The realmd service detects available IdM domains based on the DNS records, configures SSSD, and then joins the system as an account to a domain.
  • Name Service Switch (NSS) is a mechanism for low-level system calls that return information about users, groups, or hosts. NSS determines what source, that is, which modules, should be used to obtain the required information. For example, user information can be located in traditional UNIX files, such as the /etc/passwd file, or in LDAP-based directories, while host addresses can be read from files, such as the /etc/hosts file, or the DNS records; NSS locates where the information is stored.
Authentication Mechanisms
  • Pluggable Authentication Modules (PAM) provide a system to set up authentication policies. An application using PAM for authentication loads different modules that control different aspects of authentication; which PAM module an application uses is based on how the application is configured. The available PAM modules include Kerberos, Winbind, or local UNIX file-based authentication.
Other services and applications are also available, but these are common ones.
Red Hat logoGithubRedditYoutubeTwitter

Aprender

Pruebe, compre y venda

Comunidades

Acerca de la documentación de Red Hat

Ayudamos a los usuarios de Red Hat a innovar y alcanzar sus objetivos con nuestros productos y servicios con contenido en el que pueden confiar.

Hacer que el código abierto sea más inclusivo

Red Hat se compromete a reemplazar el lenguaje problemático en nuestro código, documentación y propiedades web. Para más detalles, consulte el Blog de Red Hat.

Acerca de Red Hat

Ofrecemos soluciones reforzadas que facilitan a las empresas trabajar en plataformas y entornos, desde el centro de datos central hasta el perímetro de la red.

© 2024 Red Hat, Inc.