[HELP] What is the rewrite rules for domain.com/forums to www.domain.com/forums?

Hi guys, I need help. i installed wordpress on my main domain which is sgpspclub.com, and i have moved my forum to "sgpspclub.com/forums". can someone give me the rewrite codes for directing non-www -->> domain.com/forums to www.domain.com/forums?

Example, when people type domain.com/forums it will direct them to www.domain.com/forums.

My main root htaccess is using the below codes:

Code:

 
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

my public_html/forums htaccess is using the below codes:

Code:

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

But it still dont work at all. it will direct me to http://www.domain.com//home/psp/public_html/forums any ideas?

 

this is what I have

Code:

RewriteCond %{HTTP_HOST} !^www\.general-forums\.com
RewriteRule (.*) http://www.general-forums.com/$1 [L,R=301]

 

I tried your codes on public_html/forums. but it dont work at all, it will just direct me to http://www.domain.com//home/psp/public_html/forums

 

Have you looked at this thread from vbseo
http://www.vbseo.com/f2/how-setup-w...-www-vs-non-www-htaccess-301-redirects-21501/
it's pretty helpful