By Lewis

Tech Tip: Using SNI to allow multiple SSL domains on a single IP

I recently started really thinking about the dwindling number of available IPv4 addresses and what we can do to use them more efficiently. One option that I had not revisited in a while is Server Name Indication (SNI). It is an extension to SSL/TLS, which enables sending of the domain being requested during initial negotiation of the secure connection, allowing web servers to be able to provide the correct security certificate for that domain, even if there are multiple domains on the same IP.

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