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Enabling TLS UIM hub


Article ID: 144974


Updated On:


DX Unified Infrastructure Management (Nimsoft / UIM)


We have a problem when enabling TLS 1.2 for the UIM hub which is running on Linux. We want to enable secure communications between hubs and robots.


Release : 9.2.0

Component : UIM - HUB


- scattered documentation


You need UIM v9.2.0 or higher to enable TLS 1.2 for hub <-> Robot communication:

CA Unified Infrastructure Management 9.2.0

See Release Comparison at:

and then refer to the section titled: Secure Hub and Robot

Hotfix site:

Hotfixes that should be applied currently include:
- or, for secure hubs

- or for secure robots

- UMP 9.0.2 Hotfix 2

Additional Information

If you need to enable TLS for the tunnel configuration you can use the following which should also pass PCI as it is TLS1.2.

This works for hub version 7.93 or higher. 

  1. In IM, open the hub GUI
  2. Click on the Tunnels Tab
  3. Make sure Server 'Active' is checked if this is the Tunnel Server
  4. Under Security Settings click 'Custom'
  5. Inside the Custom box utilize the following "AESGCM:!aNULL" 
  6. Its recommended to recreate the SSL cert if one already existed.

At that point if you examine the hub.log on first start, and when the tunnels are initialized, you will see something to the effect of starting Tunnels with TLS Enabled.