Comment # 3 on bug 1199383 from Otto Hollmann

I'm unable to reproduce reported issue with latest Tumbleweed nor SLE15 SP4.
Can you please try on machine where you are using lftp client following
command:
> openssl verify <your_vstpd_cert.pem>

You should receive something like this:
> cert.pem: OK

But I guess you will receive following error:
> error 18 at 0 depth lookup: self signed certificate
> error cert.pem: verification failed


This means you need to install your certificate into trust storage. Simply copy
your certificate into:
> /usr/share/pki/trust/anchors/
and run
> update-ca-certificates
Then openssl verification should return "OK" and also lftp command should no
longer complain.


Anyway, I see your Tumbleweed is quite outdated, I recommend to update your
system before reporting issue. Especially in OpenSSL there was a big change -
we changed default version from 1.1 to 3.0 and all Tumbleweed packages are
build against this new version.


Please let me know it your problem is resolved.