App Control: How to Troubleshoot Disconnected Linux Agents

Products

• Carbon Black App Control (formerly Cb Protection)

Issue/Introduction

How to troubleshoot a disconnected Linux Agent

Environment

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

Resolution

1. CD into the Agent's directory:

   cd /opt/bit9/bin

2. Run the command:

   ./b9cli --status

3. Verify you can reach the Server Address listed by running the following:

   ping <SERVERADDRESS>
   nslookup <SERVERADDRESS>
   telnet <SERVERADDRESS> <SERVERPORT>

4. If no Server is listed, the install was missing the server.conf file, and should be re-installed using the Uninstall Disconnected Linux Agent method.
5. If the Server Address is listed, and the commands above succeed, please collect the Disconnected Linux Agent (Logs) and provide when opening a case with Support.