Is there any concept map of ISPConfig? 1. I mean which files are edit by ispconfig at with time? 2. Where and how users are autenticated in ispconfig3? In Files and database the local server? What happend if the ispconfig server crashes? Are user still able to autenticate?
1) There is no such map. Take a look at the installer to see which files are edited at install time. At runtime the configuration is in the database, so the only files that get edited are /etc/passwd and /etc/shadow and the vhost files. 2) Trough mysql on the local server. ISPConfig is no daemon, so it does not mattzer for authentication if ispconfig is running or not.