The Secure Sockets Layer (SSL) protocol provides encryption and authentication of TCP connections.
When SecureAdmin is installed and configured on your storage system, it listens for SSL connections on TCP port 443. It receives secure web browser connections on this port and uses unencrypted HTTP through a loopback connection to pass the traffic to FilerView, running on TCP port 80. This loopback connection is contained within your storage system and no unencrypted data is transmitted over the network.
TCP port 443 can be disabled using FilerView or with the following command: secureadmin disable ssl