OpenSSL is a widely used library for implementing SSL/TLS encryption. Knowing which version is installed on your server helps you verify available features and check whether your system is affected by known security vulnerabilities.
Why Check the OpenSSL Version?
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Confirm compatibility with SSL/TLS certificates.
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Ensure your server supports modern encryption standards.
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Identify if your system is exposed to known vulnerabilities (e.g., Heartbleed).
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Plan upgrades or patches proactively.
Checking the Version on Linux Servers
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Log in via SSH to your server.
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Run the following command:
Bash openssl versionThis displays the installed OpenSSL version (e.g.,
OpenSSL 1.1.1w 11 Sep 2023). -
For more detailed information, run:
Bash openssl version -aThis shows build date, platform, compiler options, and directory paths.
Checking via WHM/cPanel
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WHM and cPanel rely on the system’s OpenSSL installation.
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To confirm the version:
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Log in to your server via SSH.
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Use the same
openssl versioncommand.
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WHM itself does not display OpenSSL version directly; it must be checked at the OS level.
Notes
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