Description
Zscaler (and other corporate proxies) implement dynamically generated, trusted MITM (man-in-the-middle) certificates by intercepting HTTPS traffic, re-encrypting and replacing the server certificate with a short‑lived Zscaler‑issued certificate. This can create discrepancies in trust and certificate expiration dates.
Solution
- Identify whether Zscaler (or another SSL inspection proxy) is in the traffic path by comparing the certificate chain when accessing the service with and without the proxy in place and reviewing the issuer and expiration. Signals Notebook certificates are issued by Amazon and are valid for a year.
• Consider adding a bypass/exception in Zscaler for the affected tenant URLs (no SSL inspection), allowing clients to see and trust the real service certificate with standard validity.
• If inspection must remain enabled, review your path forward with Zscaler.
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