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Nimral
Asked: 2022-01-07 10:35:49 +0800 CST

How do I find the openssl libraries on Linux (Debian buster)

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I need to find the path to the OpenSSL libraries (libeay32.dll and ssleay32.dll) on my Linux system, and suspected they could be located where the OpenSSL.exe resides.

If I enter

openssl version

I get a response like "OpenSSL 1.1.1d 10 Sep 2019". Great, so OpenSSL is installed.

If I enter

whereis openssl

I get "openssl: /usr/bin/openssl /usr/share/man/man1/openssl.1ssl.gz" and would suspect that this was the oppenssl installation directory.

Unfortunately, that directory does not exist, and so doesn't /usr/local/ssl, which is, so Internet sources say, another popular installation directory for OpenSSL. Nevertheless, OpenSSL works.

Not even a full recursive search of the file system from root reveals a hit on any of those OpenSSL files.

How do I find them? Why does whereis fail?

linux installation openssl

2 Answers

  1. Best Answer

    Debian (or GNU/Linux system in general) don't use .dll files for OpenSSL. There are no such files as libeay32.dll and ssleay32.dll. On Debian Buster you can find OpenSSL shared libraries libcrypto.co.1.1 and libssl.so.1.1 in /usr/lib/x86_64-linux-gnu/ (depending on your CPU architecture).

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  2. in addition to the above answer

    you can even try to use apt-file since it will search for the regex you provide, remember that you need to install it first

    oneline install

    apt install apt-file && apt-file update
apt-file search ssleay32.dll

    but i agree with @alexd theres usually no dll and exe files on Linux/unix systems

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