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How do I verify whether my server supports TLS1.2?

To test whether your server is TLS1.2 compatible, perform these instructions from a Linux desktop.  

Alternatively, here are versions of Operating Systems and Applications that commonly support TLS1.2: 


  • Windows 7 

  • Windows Server 2008 R2+ 

Linux applications are primarily dependent on the OpenSSL version installed. The examples provided are platforms where the default OpenSSL included is sufficiently new:  

  • Ubuntu - 12.04 (Precise) or better 

  • Red Hat / CentOS - v6+ 

  • Debian - 7.0 (Wheezy) 

This needs to be at least version 1.0.1. 

Version 4.6 defaults to TLS 1.2. Version 4.5 and below require a specific flag for TLS to be set, however, for versions below 4.5 your system will still need .NET 4.5 Installed to support TLS 1.2. 
Version 8 (1.8) defaults to TLS 1.2. Java 7 (1.7) needs to be told to use TLS 1.2. 
These rely mostly on OpenSSL to handle TLS needs. Check that your version of OpenSSL is at least 1.0.1. 


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