Install dehydrated-hook-ddns-tsig by entering the following commands in the terminal:
sudo apt update sudo apt install dehydrated-hook-ddns-tsig
dehydrated dns-01 challenge response support
This package provides a hook script to serve dns-01 challenge responses for dehydated. . It uses the dnspython API to perform dynamic DNS updates, creating a temporary TXT record for the given domain, thereby proving ownership of the domain. It requires a DNS-server capable of performing dynamic DNS updates, like bind9. There is no need for the DNS-server to run on the local machine. . This is especially useful if you want to create ACME certificates for servers that do not serve HTTP and/or are not exposed to the public internet.