Depending on the certificate used, it is needed to add some configuration on the SQL clients or not. If a certificate is provided by a Certificate Authority, no extra configuration is needed on the clients, because it will be verified with that Certificate Authority automatically. If the certificate is a self-signed certificate, the client needs to add the certificate with the certificates that it trusts to establish the connection. More documentation about how to configure the clients can be found in the LeanXcale documentation.