F5 BIG-IP SSL Orchestrator Training Lab > All SSL Orchestrator Lab Guides > SSLO 201: Advanced Use Cases with SSL Orchestrator (Agility 2022 | 2 hours) > 2. Transparent Authentication Using NTLM Source | Edit on
2.5. Enable NTLM authentication on explicit proxy topology¶
The f5labs_explicit topology does not perform user authentication by default. You will now enable NTLM authentication for all users who connect to the explicit proxy.
From the Main menu on the left, select SSL Orchestrator > Configuration
In the Topology list click on sslo_f5labs_explicit. The topology summary screen will appear.
Select /Common/f5labs-ntlm-ap from the Access Profile drop down menu

Click Save & Next at the bottom of the screen
The Egress Settings screen will load. Wait a moment for the yellow "Deploy" ribbon to appear. When it does, click the Deploy button (see example below).
Click OK to acknowledge the successful deployment.