htaccess düzenleyerek ekle

Alıntı
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{HTTP_HOST} !^www.forumadresi.com/$ [NC]
RewriteRule ^(.*)$ http://www.forumadresi.com/forum/$1 [L,R=301]
</IfModule>