🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026
Affected versions: RHEL 10.0 RHEL 10.1

📖 ~1 min read

Table of contents
  1. Symptom & Impact
  2. Environment & Reproduction
  3. Root Cause Analysis
  4. Quick Triage
  5. Step-by-Step Diagnosis
  6. Solution – Primary Fix
  7. Solution – Alternative Approaches
  8. Verification & Acceptance Criteria
  9. Rollback Plan
  10. Prevention & Hardening
  11. Related Errors & Cross-Refs
  12. References & Further Reading

Symptom & Impact

Host stops reporting health and advisory data to Insights, reducing remediation visibility.

Environment & Reproduction

Seen where outbound TLS inspection/proxy is mandatory.

sudo insights-client --register

Root Cause Analysis

Proxy credentials, CA trust chain, or no_proxy patterns are incomplete.

Quick Triage

Review insights client logs and proxy reachability from host.

sudo journalctl -u insights-client --since -12h

Step-by-Step Diagnosis

Validate environment variables, config file proxy keys, and custom CA installation.

grep -E 'proxy|cert' /etc/insights-client/insights-client.conf
Illustrative mockup for rhel-10 — insights_proxy_error
insights-client proxy connection error — Illustrative mockup — Progressive Robot

Solution – Primary Fix

Configure proxy endpoint and trust chain, then rerun registration.

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sudo insights-client --unregister && sudo insights-client --register --proxy=https://proxy.example.com:8443
Illustrative mockup for rhel-10 — insights_config_proxy
Setting proxy in insights-client config — Illustrative mockup — Progressive Robot

Solution – Alternative Approaches

Route Insights traffic via egress gateway with transparent policy and managed certificates.

Verification & Acceptance Criteria

Client registration succeeds and latest upload timestamp updates in management console.

Rollback Plan

Revert proxy settings and restore previous config backup if registration worsens.

Prevention & Hardening

Template proxy and CA settings in baseline configuration for all managed hosts.

Related to RHSM proxy failures and certificate hostname mismatch alerts.

Related tutorial: View the step-by-step tutorial for rhel-10.

View all rhel-10 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

RHEL Insights proxy and TLS trust requirements.

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