Operation ========= To run LetsDNS in a BASH compatible shell, you can use the commands below. LetsDNS does **not** require *root* privileges. Read access to the configuration files and certificates suffices. The system account of your ACME client is usually a good choice. .. literalinclude:: _static/bash-run One or more configuration files are required to run LetsDNS. If your shell supports wildcard expansion, you can use this to launch LetsDNS with a variable number of arguments: .. literalinclude:: _static/bash-wildcard This BASH example invokes LetsDNS with all matching files. It allows you to place additional configuration files into the /etc/letsdns directory if the number of domains changes. These files might even be dynamically generated during certificate retrieval.