Hi, I have learned a certificate can contain the CN "*.tld.org" and be valid for www.tld.org and for xyz.tld.org. I have also heard there is an additional attribute that can be included in a certificate and name multiple other names the certificate is valid for, something like "altSubjectName".
How do I create such a certificate with openssl? Are there browsers that won't accept it? Where can I read more on the topic? Thanks, Torsten
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