Before You Install the Experience Service > Transport Layer Security (TLS) Certificates > Configure Experience Service Certificate > Create a PEM Certificate Bundle
  
Create a PEM Certificate Bundle
Create a PEM certificate bundle by concatenating the PEM encoded certificates for all of the intermediate CAs into a single file.
The certificates must be ordered in the file such that each certificate was issued by the CA whose certificate comes next in the file.
The certificate for the CA that issued the server certificate must appear first in the file.
The last certificate in the file must be issued by the root CA.
The certificate for the root CA must not appear in the file.
If your certificate chain of trust only includes a single intermediate CA, then the certificate bundle file only includes the certificate for this single intermediate CA.
For example, assume that you have the following certificates:
Certificate A belonging to “Intermediate-A CA” and issued by the Root CA
Certificate B belonging to “Intermediate-B CA” and issued by Intermediate-A CA
Certificate C used for the Experience Service and issued by “Intermediate-B CA”
In this case, the certificates would appear in the following order:
Certificate B
Certificate A