Where's the ISPConfig configuration file?
This short FAQ article shows where the ISPConfig 3 and ISPConfig 2 configuration files are located.
The ISPConfig 3 Hosting Control Panel consists of two parts: the interface and the server. Each part has its own config file which contains the MySQL database login details and some global settings like system language and locale..
ISPConfig 3 Interface
ISPConfig 3 Server
Other ISPConfig 3 configuration files
The file /usr/local/ispconfig/server/lib/mysql_clientdb.conf contains the MySQL root password which is used to create MySQL databases. The file /usr/local/ispconfig/security/security_settings.ini contains various security related settings and the trigger scores for the IDS system.
ISPConfig 2 is the old version of ISPConfig and probably not in use anymore today. Nevertheless here the config path for that old version as a reference.