3 ms·
Doesn't the title here literally say that it works with subdomains? Or I'm misunderstanding? (Not my field of work.)
by pedrocx486 6y ago
Doesn't the title here literally say that it works with subdomains? Or I'm misunderstanding? (Not my field of work.)
- cpach 6y agoYes it does, due to the way that it’s structured. AFAICT, the wildcard symbol (asterisk) will not match across the separator (i.e. the period). So ¤.¤ will only match example.com or contoso.com etc, not blog.example.com or sales.contoso.com. If you look at the cert, it has lots of line that looks like this: DNS:¤.¤.¤.¤.¤.¤.¤.¤.¤.¤, DNS:¤.¤.¤.¤.¤.¤.¤.¤.¤.¤.¤, In that way it will match all possible levels of subdomains. (Asterisk substituted for ¤ in order to not trip up the formatting here on HN.)