File: app/config/security.yml

# To get started with security, check out the documentation:
# https://symfony.com/doc/current/security.html
security:

    # https://symfony.com/doc/current/security.html#b-configuring-how-users-are-loaded
    providers:
        in_memory:
            memory: ~

    firewalls:
        # disables authentication for assets and the profiler, adapt it according to your needs
        dev:
            pattern: ^/(_(profiler|wdt)|css|images|js)/
            security: false

        main:
            anonymous: ~
            # activate different ways to authenticate
            logout_on_user_change: true
            # https://symfony.com/doc/current/security.html#a-configuring-how-your-users-will-authenticate
            #http_basic: ~

            # https://symfony.com/doc/current/security/form_login_setup.html
            #form_login: ~