π ~1 min read
Table of contents
Symptom & Impact
wget, curl, and package tools fail against trusted HTTPS endpoints.
Environment & Reproduction
Seen on long-lived servers with stale ca-certificates packages.
Root Cause Analysis
Local trust store lacks required modern root/intermediate certificates.
Quick Triage
Test affected endpoint with openssl and inspect trust chain diagnostics.
Step-by-Step Diagnosis
Compare local CA bundle age against vendor trust requirements.

Solution – Primary Fix
Update ca-certificates package and rebuild local certificate hashes.
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Solution – Alternative Approaches
Install specific enterprise roots through managed trust policy.
Verification & Acceptance Criteria
HTTPS requests complete without certificate verification errors.
Rollback Plan
Restore previous CA bundle snapshot if required legacy endpoints break.
Prevention & Hardening
Regularly patch trust store and monitor certificate expiration windows.
Related Errors & Cross-Refs
certificate verify failed and unable to get local issuer cert.
Related tutorial: View the step-by-step tutorial for Ubuntu 14.04 LTS.
View all Ubuntu 14.04 LTS tutorials on the Tutorials Hub β
Browse all common problems & solutions on the Tutorials Hub.
References & Further Reading
CA trust management and Ubuntu certificate maintenance docs.
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