cmmodtools

This will work with [nsupdate.sh](https://github.com/cmmodtools/uacme/blob/main/nsupdate.sh) and the `certbot` command-line options: `--manual`, `--preferred-challenges=dns`, `--manual-auth-hook` and `--manual-cleanup-hook` CNAME and DNAME redirects are followed as per [RFC 1034](https://datatracker.ietf.org/doc/html/rfc1034) and [RFC 6672](https://datatracker.ietf.org/doc/html/rfc6672). The [authenticator.sh](https://github.com/cmmodtools/uacme/blob/main/authenticator.sh)...

The scripts [here](https://github.com/cmmodtools/uacme) can be used to automate certificate renewal with `named` using `nsupdate` and they overcome several limitations of the [certbot-dns-rfc2136 plugin](https://certbot-dns-rfc2136.readthedocs.io/en/stable/) such as https://github.com/certbot/certbot/issues/6566 and https://github.com/certbot/certbot/issues/6282. Use the...