EDR: Newly added minion node cannot run due to DNS resolving issue
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Article ID: 287485
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Updated On:
Products
Carbon Black EDR (formerly Cb Response)
Issue/Introduction
- New minion is adding to existing cluster, and failed with DNS resolving error.
- The whole cluster cannot start after new minion added.
- Remove the new minion brings the cluster up and run again.
Environment
- EDR: All supported versions
- Linux: All supported versions
Cause
DNS is not configured properly on new minion, which leads to minion communication failure.
Resolution
- Ping DNS server from new minion to check if new minion is able to connect to DNS server
- Ping cluster Master and each Minion nodes from new minion to check if new minion is able to connect each node.
- Check hosts file to confirm each node IP addresses are added properly.
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