Change Naked URL

[Vander]

Hi, I am using DirectAdmin on hosting and would like to make it so when someone types my-domain.net it automatically changes to www.my-domain.net

how to do this in Direct Admin?

To add more info :
Google has its own instructions
I am using google apps for email and google apps says if you want to change to www enter

Sign in to your domain hosting service.
Navigate to your DNS Management page. i.e. Domain Management, Advanced Settings.
Locate the A record settings and create a new A record.
Enter a value for the host name. For some domain hosts, the value '@' corresponds to the naked domain.
Enter the following IP addresses as the destination value:

216.239.32.21
216.239.34.21
216.239.36.21
216.239.38.21
Save changes with your domain host.
Click "I've completed these steps" below.

(this is some google IP not my ip that shows in CP)​

 

[scsi]

Create a redirect with mod_rewrite in htaccess

Go to http://www.htaccessredirect.net/index.php

1. check the box that says rewrite to www
2. Enter your domain in the box next to it. Example: www.mydomain.com
3. Hit submit
4. Take that code that it spits out and put it in a file called .htaccess inside of your /home/user/domains/domain.com/public_html folder