EDR: Yum Upgrade Fails With "[Errno 14] Peer cert cannot be verified or peer cert invalid"
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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

Environment

  • EDR: 6.x and Higher

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