Apache：如果主机不是以www或CDN开头的则重定向

Question

My goal is to redirect to domain with www. if both these conditions are met:

1. current host is not www.example.com
2. current host is not cdn.example.com

I'm using a .htaccess file with this code, but the second condition is not honoured:

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

Thank you

Answer 1

Using this did the trick:

RewriteCond %{HTTP_HOST} !^(cdn|www)\.example\.com [NC]
RewriteRule ^(.*)$ http://www.example.com/$1 [R=301,L]

I already tried it before but was tricked --by a cached redirect-- to think it was not working.