dns
,
bind
,
ssl
Bind and wildcard ssl Certs
https://linux.m2osw.com/setting-bind-get-letsencrypt-wildcards-work-your-system-using-rfc-2136
https://skorotkiewicz.github.io/techlog/automated-lets-encrypt-wildcard-certificates-with-local-bind/
https://www.ibm.com/docs/en/zos/2.4.0?topic=examples-how-use-input-file-nsupdate