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Marten Lehmann schrieb:
> Hello,
Hello Marten,

> I recently read, that it is possible the have more than one ssl-host per
> ip-address. This shall be possible with two special requirements:
> 
> - all ssl-hosts share the same key
> - all certs for the hosts are bundled within one file

No.
Either every SSL host is on a seperate key or
you have to use one private key and one certificate
that identifies itself for all SSL hosts.
This is done with the subjectAltName extension.

There are extensions to the SSL protocol that allow
more than one certificate for one port, but AFAIK
this is only implemented in the OpenSSL HEAD
(which will becopme 0.9.9 sometime in the future).
And I don't know any client supporting that SSL extension.

> For the letter requirement I think it doesn't only have to be one file
> containing one cert after the other, but these certs have to merged to
> one big cert. How can this merging be done? Is it possible to do this
> with openssl or can only the issuer of the certs do that?

Only the issuer can do that:
He has to issue a new certificate with the subjectAltName extension
containing the host name the certificate is for...

Bye

Goetz

- --
DMCA: The greed of the few outweighs the freedom of the many
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