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PASSEDcache / tls_error
Memcached 1.6 TLS Handshake Failing — Certificate Chain Incomplete on Ubuntu 24.04 LTS
Memcached 1.6 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
Ubuntu 24.04 LTS. Memcached 1.6 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)
Memcached 1.6 SSL certificate error on Ubuntu 24.04 LTS — certificate chain incomplete, intermediate CA cert missing, ssl handshake failure on port 11211, 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: cmnhnqjmc06vvlig78j13mcu2