NetBox's local configuration is stored in `$INSTALL_ROOT/netbox/netbox/configuration.py` by default. An example configuration is provided as `configuration_example.py`. You may copy or rename the example configuration and make changes as appropriate. NetBox will not run without a configuration file. While NetBox has many configuration settings, only a few of them must be defined at the time of installation: these are defined under "required settings" below.
!!! info "Customizing the Configuration Module"
A custom configuration module may be specified by setting the `NETBOX_CONFIGURATION` environment variable. This must be a dotted path to the desired Python module. For example, a file named `my_config.py` in the same directory as `settings.py` would be referenced as `netbox.my_config`.
For the sake of brevity, the NetBox documentation refers to the configuration file simply as `configuration.py`.
Some configuration parameters may alternatively be defined either in `configuration.py` or within the administrative section of the user interface. Settings which are "hard-coded" in the configuration file take precedence over those defined via the UI.