Secure Sockets Layer, or SSL, is a protocol that is used to encrypt the information exchanged between a hosting server and its users. The practical application of using an SSL is to secure the data that customers submit on your Internet site - a login page, a payment page if you run a web-based store, and so forth. Any content they type in in any box on the website will be submitted safely and securely to the server, so their login or payment details will be protected from being accessed by unauthorized individuals. Usually, an SSL certificate requires a dedicated IP address to be set up, which suggests the overall cost for your presence online will be bigger. While this might not exactly be an issue for a larger enterprise, it might matter for a non-profit organization or a small online store which doesn't generate big income if additional money should be spent. This is the main reason why we have taken advantage of an extension referred to as Server Name Indication (SNI) and we've made it possible to use a shared server IP address to install an SSL certificate.