What ways to do 301 redirect in Joomla ?

Hi,
One of my new Joomla site is opening without "www".
search engines feel the website has two versions and consider it duplicate content.
Please help me to know that what is the way to do 301 redirect in Joomla.

Thanks in advance.

 

What Do You actually Want? Only WWW Version? OR Non WWW Version??

~ExP~

 

i want my site with "www"
please also suggest me if "www" is good or without "www" ?
Thakns

 

RewriteEngine On
RewriteCond %{HTTP_HOST} ^domain\.com
RewriteRule (.*) http://www.domain.com/$1 [R=301,L]

Code (markup):

Add these to your .htaccess!

~ExP~

 

Hi,
Thanks for your help.
but I'm unable to do it.
in ftp - public.html I found .htaccess file but it is in notepad.
please suggest me how can I do that?

Thanks