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PASSEDcache / tls_error
KeyDB 6.3 TLS Handshake Failing — Certificate Chain Incomplete on RHEL 9
KeyDB 6.3 TLS connections failing because the intermediate certificate is missing from the chain. Clients receiving 'unable to verify the first certificate'.
Pattern
SSL_ERROR
Severity
HIGH
Confidence
64%
Remediation
Auto-Heal
Test Results
| Metric | Expected | Actual | Result |
|---|---|---|---|
| Pattern Recognition | SSL_ERROR | SSL_ERROR | |
| Severity Assessment | HIGH | HIGH | |
| Incident Correlation | N/A | None | |
| Cascade Escalation | N/A | No | |
| Remediation | — | Auto-Heal — Corax resolves autonomously |
Scenario Conditions
RHEL 9. KeyDB 6.3 TLS configured but intermediate CA cert missing from chain file. All HTTPS/TLS clients failing handshake. openssl s_client shows 'verify error:num=21'.
Injected Error Messages (1)
KeyDB 6.3 SSL certificate error on RHEL 9 — certificate chain incomplete, intermediate CA cert missing, ssl handshake failure on port 6379, clients: 'unable to verify the first certificate'
Neural Engine Root Cause Analysis
SSL/TLS certificate error — certificate may be expired, self-signed, or chain incomplete.
Remediation Plan
Renew or replace the SSL certificate. Verify the full certificate chain is served correctly.
Tested: 2026-04-02Monitors: 1 | Incidents: 1Test ID: cmnhnqjmd06wblig71ytt4sxz