TagFacts

*.domen.com == domen.com/*

RewriteEngine On
Options +FollowSymlinks
RewriteBase /
RewriteCond %{HTTP_HOST} ^.*\.host$
RewriteRule ^(.*) %{HTTP_HOST}$1
RewriteRule ^(.*)\.host(.*) /$1$2


RewriteCond %{HTTP_HOST} ^(.+)\.domen\.ru$ [NC]
RewriteCond %{HTTP_HOST} !^www\.domen\.ru$ [NC]
RewriteCond %{REQUEST_URI} !^/sites
RewriteRule ^(.*) %{HTTP_HOST}$1
RewriteRule ^(.*)\.domen\.ru(.*) /sites/$1$2
RewriteRule ^sites/www\.(.*) /sites/$1