EDR: Yum Upgrade Fails With "[Errno 14] Peer cert cannot be verified or peer cert invalid"
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Article ID: 285290
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Updated On:
Products
Carbon Black EDR (formerly Cb Response)
Issue/Introduction
When trying to run "yum upgrade cb-enterprise" it fails with [Errno 14] Peer cert cannot be verified or peer cert invalid
Cause
This can happen if SSL Inspection is happening on the firewall
Resolution
Whitelist the following URL in the firewall to prevent SSL Inspection
https://yum.carbonblack.com/release/x86_64/repodata/repomd.xml
https://yum.distro.carbonblack.io/release/x86_64/repodata/repomd.xml
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