File used when using PositiveSSL are:
- AddTrustExternalCARoot.crt
- PositiveSSLCA2.crt
- the_domain.crt
Concatenate the certificate in reverse order.
cat the_domain.crt > the_domain.pem cat PositiveSSLCA2.crt >> the_domain.pem cat AddTrustExternalCARoot.crt >> the_domain.pem
