Managing a private wiki/LocalSettings.php

This is the file that holds all the configuration settings for your wiki. When making changes, make them here and never in DefaultSettings.php, which is for default settings. LocalSettings.php overrides the defaults, so that's where config settings for your wiki go.

Settings

 * /Default user options/ (setting user preferences for new accounts)
 * /Access/ (who can read, edit, or create accounts)
 * ../Adding extensions/

Example
Here's a sampling of some common settings (not a complete file):