To password protect a directory, do the following:

1. Sign in to Virtualmin (see Account logins and important URLs).
2. Click Webmin Modules in the left-hand navigation, then click Protected Web Directories.
3. Click Add protection for a new directory.
4. Under Directory path, enter the directory you want to protect or choose one by clicking the … button.
5. For File containing users leave as Choose automatically (to create a .htpasswd file) or specify one yourself as desired.
6. For File containing groups leave as None (unless you know what you are doing and need user groups).
7. For Password encryption, use either Unix crypt or MD5.
8. Under Authentication realm, enter anything to 'name' the protected resource. Visitors' browsers will use that to help them understand what they are logging into.
9. For Users to allow, leave as All users in file (or specify as needed).
10. Click Create. You should now see a listing of your protected directories.
11. Under Associated users and groups, click Add new user in the right column adjacent to your newly created directory (you'll need to perform this step in order to setup a user name and password).
12. Enter a Username and Password for the directory and make sure Enabled? is set to Yes (If you forget your password you can always go back to this screen to change it).
13. Click Create.

You should now see your list of protected directories and your newly protected directory will have a user name associated with it in the Associated users and groups column.

You've now password protected a directory. If you want, you can go back and add more users by repeating the last three steps.