How to determine the OpenSSL version

This article describes how to check which OpenSSL version is installed on a server. You may need to do this to verify whether or not a particular feature is available, or check if the installed version is affected by a security issue (such as the Heartbleed bug).

To check which OpenSSL version is installed on a Linux server, log in to your account using SSH, and then type the following command at the command line:

openssl version

The command is the same for Windows servers. If you have access to the Windows desktop for your server, use these instructions:

  1. Click the Windows Start button and type cmd into the search text box. Press Enter or click on the Command Prompt application to open your Windows command line.
  2. Type openssl version and press Enter.

If you do not have access to the Windows desktop, please contact support do get the current openssl version for your server.

More Information

For more information about OpenSSL, please visit

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