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From Jeremy Payne <>
Subject Origin SNI Value
Date Tue, 17 Jan 2017 21:56:17 GMT

I currently have ATS configured to support a pristine host header.

   proxy.config.url_remap.pristine_host_hdr 1

I also have ATS configured to verify the origin server certificate.

   proxy.config.ssl.client.verify.server 1

My remap looks like this.


Because pristine is enabled, when ATS sends a request back to the origin,
it uses a SNI value of:

However, the origin returns a certificate that does not match the SNI.

Because the requested SNI and the returned CN/SAN do not match, coupled
with verify.server enabled, ATS terminates the origin session and sends a
502 back to the client.

Is there another control or configuration that allows me to define which
SNI value to
send back to the origin ?
I need to keep pristine enabled and I need verify.server enabled.

Thanks in advance.

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