I have an SSL certificate from sslforfree. I have the
certificate and its
I'd like to create my own certificate, for different subdomains. My hope is that somehow, I can sign that certificate with my existing certificates in a way, that it'll pass all those ssl checks that browsers and mail clients, and others do.
I followed through dozens of tutorials, but either I'm missing an important nuance, or those tutorials are not what I want.
Can anybody help me, how can I sign my new certificates with