问题
Is this a valid DNS entry
*.subdomain.tld
i.e.
*.dev.domain.com
Cheers
Ian
回答1:
Yes, this is valid dns wildcard, i.e.:
*.subdomain.tld. IN A 1.2.3.4
and any query for <anything>.subdomain.tld will be resolved to 1.2.3.4
来源：https://stackoverflow.com/questions/13739867/dns-subdomain-has-wildcard