How to make a redirect from all subdomains except one to the main one?

Question

htaccess

RewriteCond %{HTTP_HOST} ^([a-z0-9_-]+).site\.ru$ 
RewriteCond %{HTTP_HOST} !=spb.site.ru [NC]
RewriteRule ^(.*) http://site.ru/$1 [R=301,L]

Tried this code - doesn't work.

Answer 1

RewriteCond %{HTTP_HOST} ^.+\.site\.ru$ 
RewriteCond %{HTTP_HOST} !^spb\.site\.ru$ [NC]
RewriteCond %{HTTP_HOST} !^www\.site\.ru$ [NC]
RewriteRule ^(.*) http://site.ru/$1 [R=301,L]

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