How to install ca certificate (ca.crt) on Centos7?

Question

CentOS

Good afternoon!
How to install ca.crt on Centos7? Or how to check that it is installed?
I tried to install like this:
cp ca.crt /etc/pki/ca-trust/source/anchors/
update-ca-trust extract
But did the certificate install?

Answer 1

ca.crt is, judging by the name, a certificate of a certain CA that issues its own certificates? Then:
- copy it to /etc/pki/tls/certs
- ln -s ca.crt `openssl x509 -hash -noout -in ca.crt`.0
Many programs look for CA certificates either along the path from openssl.cnf or in general, strictly laid down.