Symfony 2.0 multiple firewalls sample configuration file

gistfile1.yml

security:
    encoders: ~
        
    providers:
        
        doctrine:
            entity: { class: FQCN, property: username }
        
    firewalls:
        dev:
            pattern:  ^/(_(profiler|wdt)|css|images|js)/
            security: false

        backend_login:
            pattern:        ^/admin/login
            anonymous:      true

        backend:
            pattern:        ^/admin
            form_login:
                provider:   doctrine
                check_path: /admin/login-check
                login_path: /admin/login
            logout:
                path:       /admin/logout
                target:     /

        frontend:
            pattern:        ^/
            anonymous:      true
            provider:       doctrine
            form_login:
                check_path: /user/login_check
                login_path: /user/login
            logout:
                path:       /user/logout
                target:     /

    access_control:
        - { path: ^/admin/login, roles: IS_AUTHENTICATED_ANONYMOUSLY }
        - { path: ^/admin, roles: ROLE_ADMIN }