Hosting multiple SSL Certificates on a single IP and supported by all browsers!

vanbroup

Verified User
Joined
Aug 2, 2012
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Multiple SSL Certificates can be deployed on a single IP address and no DNS updates are required while retaining support for non SNI capable browsers.

The rapidly decreasing availability of IPv4 addresses has limited the way hosting companies can resell SSL to their customer base, as typically each SSL Certificate must be hosted on a dedicated IP address. The Server Name Indication extension of the SSL protocol was developed for this purpose. However, the lack of adoption of the technology in certain browsers and operating systems means that a number of users are not able to view the secured sites.

To remedy this issue and avoid cutting access to a number of website visitors, GlobalSign has developed a revolutionary method which uses SNI in combination with GlobalSign CloudSSL technology. Each website will be secured with its own individual SSL Certificate, enabling the use of any type of certificate up to the highest Extended Validation level. Each domain will then also be added to a CloudSSL Certificate (a “multi-domain” certificate) which will automatically be served to the users that lack SNI compatibility. This revolutionary solution will work transparently for all users and is easy to set up, as the server side application provided by GlobalSign automates the full process.

The solution is tested and documented for use with DirectAdmin and can be used in combination with our OneClickSSL plugin for DirectAdmin to fully automate the SSL Certificate enrollment.

See my blog post with more information:
https://www.globalsign.com/blog/saving-ipv4-resources.html
 
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