Since this morning ( I suppose for this DST Root CA X3 Expiration (September 2021) - Let's Encrypt ) We are unable to run the rt-cli on CentOS 7.
All packages on yum are up-to-date ( included ca-certificates ). Do you know from where this error comes from?
I doubt that because tools like curl are working.
For now the workaround I found to use the cli is by exporting:
PERL_LWP_SSL_VERIFY_HOSTNAME=“0”
here our host was still a Debian 8, and there was no way to have it work with the new certificates.
I had to upgrade Debian to at least version 10 and now cetificates were ok.