In case you are running Zammad onPremise on own servers, we strongly recommend to visit our Server Administrator Training:
This training is intended for technical server administrators in self-hosted operations. The training covers topics such as installation, server configuration, sizing, backup and restore processes, as well as some tricks for database interventions at the server level (Linux and Ruby Console).
The duration is 4 hours. Our trainers have extensive Zammad experience and can address all questions within the scope of the training.