Trying to get UTM 9.5 to work as the reverse proxy for our Skype for Business 2015 Frontend. Skype is set up and working and UTM works until we get to the certificate. When an external client hits one of the simple URLs such as meet.domain,com the client receives the internal CA Certificate that is installed on the Skype Front end not the public SSL certificate installed on the UTM. Microsoft recommends that the Skype Front end have a certificate from the internal CA and the reverse proxy have a publicly recognized certificate. The question is to get this to work do I need to replace the internal CA certificate on the Front end with the public certificate for this to work? If anyone has tis working it this what you needed to do?
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