Redirecting all domain aliases to one with htaccess

.htaccessredirect

I have a few domain aliases, while I only want one of them to be actually used.
At the moment, I have two domains installed,

To redirect I'd like to use htaccess.

My domains currently work like so:

www.domain.com/index.html – Main domain's home page

www.secondDomain.com/index.html – Displays exactly the same home page as the main domain, but I want it to automatically rename the url to www.domain.com/index.html when it's used.

Thanks!

Best Answer

It is a simple matter of matching %{HTTP_HOST} not equal to www.domain.com and redirecting that to the canonical domain.

RewriteEngine On
# If the hostname is NOT www.domain.com
RewriteCond %{HTTP_HOST} !^www\.domain\.com$
# 301 redirect to the same resource on www.domain.com
RewriteRule (.*) http://www.domain.com/$1 [L,R=301]
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