Multi certificate support returns Letsencrypt Intermediate Certificate twice

mastercan nginx-forum at
Tue May 31 11:12:20 UTC 2016

Hello folks,

I have the following setup:
Nginx 1.11.0
Libressl 2.3.4

1 Letsencrypt RSA 2048 certificate
1 Letsencrypt ECDSA p256 certificate

The certificate files are both chained. Both have the Letsencrypt RSA 2048
X3 intermediate certificate at the end of the file.

The problem is:
Nginx returns this intermediate certificate twice when connecting via https.
Regardless whether you connect via RSA client or ECDSA client.

Is this a bug? Or a configuration issue?

Thank you in advance!

Posted at Nginx Forum:,267240,267240#msg-267240

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