Here's a step-by-step guide on how to enable or disable directory indexing in DirectAdmin:
1. Log in to your DirectAdmin control panel using your username and password.
2. Once logged in, click on the "File Manager" icon under the "Advanced Features" section.
3. On the File Manager page, navigate to the directory you want to enable or disable directory indexing for.
4. Right-click on the directory and select "Properties".
5. In the "Properties" dialog box, check or uncheck the "Indexing" option to enable or disable directory indexing, respectively.
6. Click the "Save" button to save the changes.
Congratulations! You have now successfully enabled or disabled directory indexing for the selected directory in DirectAdmin. If directory indexing is enabled, visitors to the directory will be able to see a list of its contents. If directory indexing is disabled, visitors will see a "403 Forbidden" error message instead.