.htaccess 301 redirect from main domain to subdomain

Question

What should I put in .htaccess to redirect all links from main domain to subdomain? I have it like that but it doesnt wok:

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

Answer 1

Have you tried without the http:// and the / at the end in the first line ?

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