About

Shows how to perform Federated cross-site single sign-in (SSO) and single sign-out (SLO) in Auth0.

How Does it Work?

Cross Domain Single Sign On

Cross Domain Single Log Out

Setup

Hosts

cat /etc/hosts | grep app
127.0.0.1  app1.com app2.com app3.com

Auth0 Applications

Create two Auth0 applications:

Federated SSO - App1

Config	Value
Type	regular web app
Allowed Callback URLs	http://app1.com/cb.php, http://app2.com/cb.php

Federated SSO - App2

Config	Value
Type	regular web app
Allowed Callback URLs	http://app1.com/cb.php, http://app2.com/cb.php

Seamless SSO - App3

Config	Value
Type	SPA
Allowed Callback URLs	http://app3.com/spa.html

Configuration

vars.php

Copy vars.php-TOBEMODIFIED to vars.php and update the following variables.

Config	Value
$AUTH0_DOMAIN	AUTH0 TENANT
$APP1_CLIENT_ID	App1 client ID
$APP1_CLIENT_SECRET	App1 client Secret
$APP2_CLIENT_ID	App2 client ID
$APP2_CLIENT_SECRET	App2 client Secret

spa.html

Edit spa.html and update the following variables.

Config	Value
AUTH0_DOMAIN	AUTH0 TENANT
AUTH0_CLIENT_ID	App3 client ID