Change the App Control Client Communication Port

Products

• Carbon Black App Control (formerly Cb Protection)

Issue/Introduction

To change the client communication port (default: 41002) used between the Agents and Server.

Environment

• App Control Agent: All Supported Versions
• App Control Server: All Supported Versions

Resolution

1. Determine the new communication port (ex: 91002) and verify the new port is available between endpoints and application server.
2. Log in to the application server hosting the Console as the Carbon Black Service Account.
3. If an Agent is installed on the application server it is recommended to temporarily:
   1. Disable Tamper Protection.
   2. Move the Agent to Local Approval.
   3. For other security software on the system, make sure Server Exclusions are in place.
4. Uninstall the App Control Server software.
5. Begin reinstallation of the App Control Server software
   • App Control Tech Docs > Server > Server Installation Guide > Installing with a Reconnected Database
6. During reinstall, at the Server Configuration Options prompt, specify the new port (ex: 91002).
7. Existing Agents will need to be updated using setserver to use the new communication port.
   • These steps can be scripted to update the Agents in bulk.

Additional Information

• Specifying the Agent Communication Port is only possible during installation of the Server software.
• Until the setserver command is issued, or Agents are reinstalled, they will continue to try and use the previous port.