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Modern browsers also support an extension to the SSL protocol called Server Name Indication (SNI). Modern browsers include support for ECDSA, where many legacy browsers do not. #Uninstall utc universal type client for free#These challenges required that, for free customers, we limit Universal SSL support to modern browsers. Given that CloudFlare controls a finite number of IP addresses, it would be impossible for us to dedicate a unique IP for every one of our millions of customers. That meant you were limited to one certificate per IP address. The original implementation of SSL encrypted the host header. IPv4 termination is the other challenge of Universal SSL. ![]() We've written in the past about the benefits of ECDSA including the fact that it supports Perfect Forward Secrecy and faster SSL termination (and therefore faster page load times). As it happens, ECDSA also provides a number of performance and security benefits over older cipher suites. For instance, the cutting-edge cipher suite ECDSA imposes significantly less load on our systems as compared with a more traditional cipher suite based on RSA. The additional load varies depending on the particular cipher suite used. Terminating HTTPS connections requires more CPU load than terminating HTTP. To make Universal SSL work at our scale we needed to ensure it wouldn't overwhelm our resources. ChallengesĬloudFlare operates at significant scale and we're growing very quickly. Once you've installed a certificate on your web server, you can enable the Full or Strict SSL modes which encrypt origin traffic and provide a higher level of security. #Uninstall utc universal type client how to#Later today we'll be publishing a blog with instructions on how to do that at no cost. #Uninstall utc universal type client install#We strongly recommend site owners install a certificate on their web servers so we can encrypt traffic to the origin. Those certificates include an entry for the root domain (e.g., ) as well as a wildcard entry for all first-level subdomains (e.g.,, etc.).įor a site that did not have SSL before, we will default to our Flexible SSL mode, which means traffic from browsers to CloudFlare will be encrypted, but traffic from CloudFlare to a site's origin server will not. How does it work?įor all customers, we will now automatically provision a SSL certificate on CloudFlare's network that will accept HTTPS connections for a customer's domain and subdomains. ![]() As always, SSL for paid plans will be provisioned instantly upon signup. By the end of the day today, we'll have doubled that.įor new customers who sign up for CloudFlare's free plan, after we get through provisioning existing customers, it will take up to 24 hours to activate Universal SSL. Yesterday, there were about 2 million sites active on the Internet that supported encrypted connections. We expect this process to be complete for all current customers before the end of the day. This morning we began rolling out the Universal SSL across all our current customers. Beginning today, we will support SSL connections to every CloudFlare customer, including the 2 million sites that have signed up for the free version of our service. The team at CloudFlare is excited to announce the release of Universal SSL™. ![]()
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