A manual implementation for DNS-01 challenge hook used in dehydrated, a Let's Encrypt client.
When using this hook the script will tell you what to do to complete the DNS-01 challenge of Let's Encrypt.
/path/to/dehydrated -c --domain example.com -t dns-01 -k /path/to/hook.sh
More hooks: https://github.com/lukas2511/dehydrated/wiki/Examples-for-DNS-01-hooks
Dehydrated: https://github.com/lukas2511/dehydrated