Multisite non-www domain redirects to sign-up

Question

I have Multisite enabled and can only view my site with the www. When I try without the www it sends me to the sign-up page and says

Registration has been disabled.

www.domain.com/portfolio  <-- load correctly
domain.com/portfolio      <-- redirects to sign-up page

I've tried NOBLOGREDIRECT, but nothing changes.

define('NOBLOGREDIRECT', 'http://www.domain.com');

In .htaccess, I've also tried the following with no success.

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

How do I get my site viewable with and without the "www." in the domain?

Answer 1

The answer is here: Domain redirect in Wordpress multisite.

You need to use the domain mapping plugin.

http://wordpress.org/extend/plugins/wordpress-mu-domain-mapping/

A must read http://ottopress.com/2010/wordpress-3-0-multisite-domain-mapping-tutorial/

Answer 2

@jaysonp, you were really close but in your Rewrite rule you forgot the www.

Add this in your htaccess file right under RewriteEngine On

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

Answer 3

The solution for me was in the end very simple: within the Domain Mapping plugin referenced by Azizur's answer above, I added a new domain without the www and the same site ID as the www version. I unchecked primary. The result is two entries for the same site (in my case site ID 2), as follows:

ID: 2
Domain: www.domain.com
Primary: Yes

ID: 2
Domain: domain.com
Primary: No

Answer 4

You don't need to add any codes in htaccess file. There is very easy solution to this. In the 'Network Admin -> Settings -> Domains' page, add both the www. and non-www. versions of the domain, select the box of 'primary' for if you want to mainly use for www. or non-www. and both will be assigned to the website.

Answer 5

Actually the fix is very simple. In your Network>Sites list make sure you do not use www. for your subsites' url address. Simply configure each of your subsite url subsite.com instead of www.subsite.com.