RewriteEngine On
RewriteCond %{REQUEST_METHOD} ^TRACE
RewriteCond %{HTTP:range} !(^bytes=[^,]+(,[^,]+){0,4}$|^$)
RewriteRule .* - [F]
RewriteCond %{HTTP_HOST} ^([^\.]+)\.7mas\.ru$ [NC]
RewriteCond %{HTTP_HOST} !^www\.7mas\.ru$ [NC]
RewriteRule ^(.*)$ http://7mas.ru/users/link.php?id=%1 [R,QSA]
RewriteRule ^([0-9]+)$ http://7mas.ru/users/profile.php?user=$1 [L]
RewriteRule ^([^/\.]+)$ http://7mas.ru/users/link.php?id=$1 [R,QSA]