RE: SSL Certs for IP Based Virtual Hosts

["David Kazias" <david@xxxxxxxxxxxxxxx>]

> Does this mean that if abc.com has an SSL Cert and is assigned to ip
address
> 209.345.455.106, that def.com, ghi.com, and hij.com which are also
assigned to
> the same ip address (209.345.455.106) will also use the same SSL Cert for
abc.com
> eliminating the need to buy one for each domain name?

Not exactly.

A standard SSL Cert deals with a specific domain name (ie: www.bob.com,
news.bob.com, events.bob.com), although it is possible to get a so-called
wildcard cert that deals with *.bob.com if you want to pay more.

Because your server will apply a single SSL cert to all connections made to
a specific IP, it's still possible to make connections to other domains
hosted on the same IP over SSL. However, doing so will trigger the domain
cert for whatever.bob.com and the browser will throw up one of those happy:
"This appears to be an invalid certificate- the domain name does not match",
warning windows.

David Kazias
Eternity Web Designs Inc.


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