TLS/SSL is required for client connections to Access Point appliances. Client-facing Access Point appliances and intermediate servers that terminate TLS/SSL connections require TLS/SSL server certificates.
TLS/SSL server certificates are signed by a Certificate Authority (CA). A CA is a trusted entity that guarantees the identity of the certificate and its creator. When a certificate is signed by a trusted CA, users no longer receive messages asking them to verify the certificate, and thin client devices can connect without requiring additional configuration.
A default TLS/SSL server certificate is generated when you deploy an Access Point appliance. For production environments, VMware recommends that you replace the default certificate as soon as possible. The default certificate is not signed by a trusted CA. Use the default certificate only in a non-production environment