[wp-hackers] WordPress multisite, Domain mapping and SSL

[Doug Stewart]

Not entirely true. Apache after 2.2.12 supports SNI (Server Name
Indication) which allows for multiple SSL certs per IP.

Dig it:
http://en.wikipedia.org/wiki/Server_Name_Indication

On Tue, Aug 30, 2011 at 5:05 PM, John Blackbourn
<johnbillion+wp at gmail.com> wrote:
> On 30 August 2011 21:57, Jeremy Felt <jeremy.felt at gmail.com> wrote:
>> James,
>>
>> Each SSL certificate *requires* a unique IP address on the server. This is
>> outside the realm of WordPress configuration. The solution will depend on
>> your network and server setup.
>
> And if you're wondering why this is it's because an SSL connection is
> negotiated before the request is read, so the server cannot know the
> hostname being requested until the SSL connection is made. Therefore
> you can only have one SSL virtualhost per IP address.
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-- 
-Doug