Install dehydrated by entering the following commands in the terminal:
sudo apt update sudo apt install dehydrated
ACME client implemented in Bash
The dehydrated ACME client allows signing certificates with an ACME server, like the one provided by the Let’s Encrypt certificate authority (letsencrypt.org). It is implemented as a relatively simple Bash script, which uses curl to communicate with the ACME server and OpenSSL to deal with keys, sign requests and certificates. . The ACME (Automated Certificate Management Environment) protocol makes it possible to automatically obtain browser-trusted certificate.