Hi Henning and Alex,

Thanks very much for the answers. I added the following line to /etc/systemd/system/kamailio.service, reloaded the systemd configuration, and restarted Kamailio. However the "OpenSSL version" logged by Kamailio is the same as before. I also tried using libcrypto.so instead of libssl.so with the same result. I was able to verify that the LD_PRELOAD environment variable was the correct value inside the startup script that's run by systemd. Have you any suggestions on what I could be doing wrong? Thanks again.

Environment="LD_PRELOAD=/opt/openssl/lib64/libssl.so"

On Thu, 1 Aug 2024 at 22:24, Alex Balashov via sr-users <sr-users@lists.kamailio.org> wrote:

Yes, you can use the LD_LIBRARY_PATH, and `ldd` to verify.

> On Aug 1, 2024, at 1:05 AM, David Cunningham via sr-users <sr-users@lists.kamailio.org> wrote:
>
> Hello,
>
> We have compiled openssl 3.0.9 from source because it's FIPS validated, and want to use it with Kamailio. The server also has the Ubuntu openssl 3.0.2 package installed.
>
> Does anyone know how we can tell Kamailio to use the openssl library in /opt/openssl/lib64, and how we can verify that it really is using it?
>
> Thanking you in advance,
>
> --
> David Cunningham, Voisonics Limited
> http://voisonics.com/
> USA: +1 213 221 1092
> New Zealand: +64 (0)28 2558 3782
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--
Alex Balashov
Principal Consultant
Evariste Systems LLC
Web: https://evaristesys.com
Tel: +1-706-510-6800

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