Plesk has the disadvantage that everything is done through the
database. So we can’t just modify Bind’s Zone files.
To add an A record of a subdomain you have to do the following:
/usr/local/psa/bin/dns -a domain.tld -a subdomain -ip 127.0.0.1
the first -a is for add to zone which is why it must specify the top
level domen, the second is for A record, and must not contain the full
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