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I am running here a multi-tenant web site with vhosts in Apache 2.4.10 in Jessie.

I am trying to disable the possibility of non-SNI clients to access (the default) SSL site.

For that I setup in /etc/apache2/mods-available/ssl.conf

SSLStrictSNIVHostCheck On

From the file:

SSLStrictSNIVHostCheck : Whether to forbid non-SNI clients to access name based virtual hosts.

However, after restarting apache, non-SNI clients are still able to access the default SSL host.

For instance, this still works:

openssl s_client -connect localhost:443 

Likewise, trying to access a vhost without SNI, using

openssl s_client -connect domain.com:443 

still returns the default SSL domain, whist accessing the same host with SNI:

openssl s_client -connect domain.com:443 -servername domain.com

returns the appropriate page from the vhost.

I also tried putting the SSLStrictSNIVHostCheck On directive in the default SSL vhost to no avail.

Am I missing something obvious?

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