Apache2, SSL certificates and virtual servers question
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Apache2, SSL certificates and virtual servers question
Hi,
I looked at the apache 2 documentation online but there it clearly states that SSLCertificateFile option stays clearly outside a virtual server block. Could anyone tell me how to have a key and certificate pair per virtual server. Placing SSLCertificateFile and SSLCertificateKeyFile inside virtual server gives and error.
Name-Based Virtual Hosting is a very popular method of identifying different virtual hosts. It allows you to use the same IP address and the same port number for many different sites. When people move on to SSL, it seems natural to assume that the same method can be used to have lots of different SSL virtual hosts on the same server.
It comes as rather a shock to learn that it is impossible.
The reason is that the SSL protocol is a separate layer which encapsulates the HTTP protocol. So the SSL session is a separate transaction, that takes place before the HTTP session has begun. The server receives an SSL request on IP address X and port Y (usually 443). Since the SSL request does not contain any Host: field, the server has no way to decide which SSL virtual host to use. Usually, it will just use the first one it finds, which matches the port and IP address specified.
You can, of course, use Name-Based Virtual Hosting to identify many non-SSL virtual hosts (all on port 80, for example) and then have a single SSL virtual host (on port 443). But if you do this, you must make sure to put the non-SSL port number on the NameVirtualHost directive, e.g.
NameVirtualHost 192.168.1.1:80
Other workaround solutions include:
Using separate IP addresses for different SSL hosts. Using different port numbers for different SSL hosts.
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