Why does Elastic Cloud provides a specialized port (9243) instead of only using the default one (443)?
I received this answer from the Elastic Cloud helpdesk:
Thank you for reaching out. You are correct that we allow both port 9243 and 443 for HTTPS in Elastic Cloud. There is no functional difference whether you use one port or the other for HTTPS, and we have no plans to phase one of the ports out. It is completely up to you which port you decide to start with.
I don’t believe the behaviour will change in the future. However, I would recommend sending an email to support@elastic.co to understand why 2 ports for HTTPS access.