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apache 2.2 - Single domain SSL presented for all domains on Shared IP




I have a VPS running Apache/2.2.22 on Ubuntu Server 12.04 LTS.




I have successfully installed an SSL for domaina.com



Unfortunately if I visit https://domainb.com, https://domainc.com, etc… I am presented with certificate warnings as each domain is presenting domaina.com certificate.



How can I stop this?



Can I stop Apache sending the certificate for all sites sharing the same IP.
Can I block port :443 access using ufw for a domain name?
Something else?




Domain A configuration




    ServerName   domaina.com
    ServerAlias  www.domaina.com
    DocumentRoot /var/www/domaina.com/public



    ServerName   domaina.com

    ServerAlias  www.domaina.com
    DocumentRoot /var/www/domaina.com/public
    SSLEngine on
    SSLCertificateFile      /etc/apache2/ssl/domaina.com.crt
    SSLCertificateKeyFile   /etc/apache2/ssl/domaina.key
    SSLCertificateChainFile /etc/apache2/ssl/domaina.com.ca-bundle





Domain B, C… configuration




    ServerName   domainb.com
    ServerAlias  www.domainb.com
    DocumentRoot /var/www/domainb.com/public



Errors experienced




Browsing using Mac OS X Mountain Lion, latest version of Chrome, Safari, Firefox.



Chrome — This is probably not the site you are looking for! You attempted to reach www.domainb.com, but instead you actually reached a server identifying itself as www.domaina.com.



Firefox — This Connection is Untrusted. You have asked Firefox to connect securely to www.domainb.com, but we can't confirm that your connection is secure.



Safari — Safari can't verify the identity of the website "www.domainb.com".


Answer



This is expected behavior. You have a couple options here - you can either use Subject Alternative Names in your SSL cert and serve the names for the other domains, you can get a new IP for the other domains, or you can force the other domains to be non-SSL. The last might not work very well, as you will likely end up using an Apache rewrite rule, which may only be recognized after the browser presents it's certificate warning.



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