Shield your Atlassian applications from unauthenticated traffic.
You’re already using AWS Application Load Balancers.
Allow your AWS Application Load Balancer (ALB) to be the gatekeeper between your users and Atlassian Data Center and Server apps.
AWS ALB Authentication Product Guide
Getting Started with AWS ALB
Global entry for your trusted users
Your authenticated users will not have to demonstrate their credentials again when they reach the Atlassian application: they will be logged in automatically using the information the ALB received from the IdP.
Authenticate & Sync:
Enforce a Single Source of Identity
Add resolution’s User Sync for accurate user provisioning and access management. At all times.