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Bugzilla #1662137 Certificate Problem Report

SwissSign: OCSP responder unreachable

RESOLVED FIXED SwissSign AG
AI Summary

SwissSign AG reported an issue with their OCSP responder being unreachable, initially detected on August 31, 2020. The problem stemmed from a misconfiguration in their BGP settings, which was compounded by a massive DDoS attack. After several attempts to restore service, including hardware failures and subsequent fixes, the OCSP service was stabilized with the implementation of additional DDoS protection. The case was resolved with the acknowledgment that the OCSP service is now stable and operational.

Model: gpt-4o-mini Generated: 2026-06-13 20:50 UTC Confidence: 0.90
Chronology
  1. OCSP service detected as down
  2. Confirmed DDoS attack and implemented protective measures
  3. OCSP service up but unstable due to ongoing attacks
  4. Additional DDoS protection implemented
  5. Service confirmed stable with no significant impact from attacks
Participants
Mike Guenther bwilson@mozilla.com
External References
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