Convert MID-based ACC to MID-less

Convert MID-based Agent Client Collector (ACC) to MID-less ACC by adjusting the configuration in acc.yml, decoupling from a specific MID to enhance flexibility and adaptability.

Before you begin

Verify that the ACC registration key was set up and the ACC was installed. For more information, see the following:

• Create an ACC registration key.
• Install ACC for DEX on Windows or Install ACC for DEX on macOS.

Role required: agent_admin and agent_client_collector_admin

For more information, see Agent Client Collector user roles.

Procedure

1. Stop ACC based on your operating system:
   • For Windows, access Services as administrator and stop the Agent Client Collector Service.
   • For macOS, execute the command: sudo launchctl unload -w /Library/LaunchDaemons/com.sn.acc.plist;.
2. Open the acc.yml file.
3. Edit the instance URL.
4. Edit the backend-url parameter to point to <ITOM Cloud Services Gateway>.
   Use one of the following gateways based on the instance location:

   • AMER: itomcnc-prod-gateway-amer.sncapps.service-now.com:443
   • EMEA: itomcnc-prod-gateway-emea.sncapps.service-now.com:443
   • APAC: itomcnc-prod-gateway-apac.sncapps.service-now.com:443

   For more information on how the Agent uses the ITOM Cloud Services Gateway, see DEX Architecture.

5. Configure the following parameters:
   • connect-without-mid: true
   • instance-url: <full_instance_url>

     For example: https://dex.servicenow.com.

   • insecure-skip-tls-verify: false
   • registration-key: <registration key value>

     For more information, see Create an ACC registration key.

6. Comment out the API key parameter:
   api-key: "encrypted....”
7. Save the file.
8. Delete files based on your operating system:
   • On Windows, navigate to /agent-client-collector/config/cert/cnc and remove the following files: cnc_chain.crt and priv_key.pem.go.
   • On macOS, access /Library/Application Support/servicenow/agent-client-collector/cert/cnc and delete the files: cnc_chain.crt and priv_key.pem.
9. Delete assets.db, queue.db, and all subdirectories in the cache folder based on your operating system:
   • On Windows: /agent-client-collector/cache.
   • On macOS:
     • For Agent 3.4.1 or above: /Library/Application Support/servicenow/agent-client-collector/cache.
     • For Agent 3.4.0 or below: /Library/Caches/servicenow/agent-client-collector.
   Important:

   Keep agent_now_id in the cache folder.
10. Initiate the ACC service based on your operating system.
    • On Windows, open Services as administrator, then start the Agent Client Collector Service.
    • On macOS, use the command: sudo launchctl load -w /Library/LaunchDaemons/com.sn.acc.plist.