* Your system's `preferences` file and `preferences.d` directory
* Your system's `sources.list` file and `sources.list.d` directory
+* Your system's `apt.conf.d` directory
* System repositories
* Authentication keys
-**Note:** This module offers `purge` parameters which, if set to `true`, **destroy** any configuration on the node's `sources.list(.d)` and `preferences(.d)` that you haven't declared through Puppet. The default for these parameters is `false`.
+**Note:** This module offers `purge` parameters which, if set to `true`, **destroy** any configuration on the node's `sources.list(.d)`, `preferences(.d)` and `apt.conf.d` that you haven't declared through Puppet. The default for these parameters is `false`.
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### Beginning with apt