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ONTAP S3 certificate verify failed with hostname mismatch error after SSL or TLS certificate renewal

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Category:
ontap-9
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nas
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Applies to

  • ONTAP 9
  • ONTAP S3
  • S3 clients

Issue

  • After renewing the SSL/TLS certificate used by an ONTAP S3 object-store server, S3 clients fail to connect and report an error.
peeraddr=<IP>:443 state=error: certificate verify failed (hostname mismatch)
  • The error occurs during the TLS handshake when accessing the S3 endpoint using a fully qualified domain name (FQDN).

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