How to dynamically redirect www-based URLs to non-www URLs with multiple domains in same VirtualHost

Question

I've got a VirtualHost that looks something like:

<VirtualHost *:80>

  ServerName  domain1.com
  ServerAlias www.domain1.com domain2.com www.domain2.com

</VirtualHost>

When someone visits www.domain1.com/test, they should be redirected to:

domain1.com/test

When someone visits www.domain2.com/test, they should be redirected to:

domain2.com/test

My current RewriteRules are lacking.

Edit: Here's what I've got so far:

# Rewrite www to non-www
RewriteEngine on
RewriteCond %{HTTP_HOST} www\.%{HTTP_HOST}$ [NC]
RewriteRule ^(.*)$ http://%{HTTP_HOST}/$1 [L,R=301]

Obviously, this generates an infinite redirect loop.

bobince · Answer 1 · 2009-02-09T20:23:17.467

10

No need for rewrites.

<VirtualHost *:80>
    ServerName domain1.com
    ServerAlias domain2.com
    ... real vhost settings ...
</VirtualHost>

<VirtualHost *:80>
    ServerName www.domain1.com
    Redirect permanent / http://domain1.com/
</VirtualHost>
<VirtualHost *:80>
    ServerName www.domain2.com
    Redirect permanent / http://domain2.com/
</VirtualHost>

edited Feb 09 '09 at 20:23

answered Feb 09 '09 at 18:58

bobince

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This will redirect all traffic to domain1.com, I need the traffic to remain on their respective sites, whilst removing the 'www'. – Nick Sergeant Feb 09 '09 at 19:18
I don't believe this will retain the URL structure, will it? I would assume www.domain2.com/test1 would redirect to http://domain2.com, rather than the desired http://domain2.com/test1 – Nick Sergeant Feb 10 '09 at 03:22
Yes, it will retain the trailing URL fine. – bobince Feb 10 '09 at 03:28
1

This is great for SEO purposes. i.e. shifting link equity from www to non www or vice versa - which most people don't know, Google will penalize you for having duplicate content. – Jared Eitnier Oct 09 '13 at 00:29

score 7 · Accepted Answer · answered Feb 10 '09 at 08:43

Your RewriteCond is a bit wonky. I'm surprised it does anything at all, since it would seem to be trying to match the host www.domain1.com against the pattern www\.www.domain1.com. These directives worked for me:

# Redirect www to non-www
RewriteEngine on
RewriteCond %{HTTP_HOST} ^www\.(.+)$ [NC]
RewriteRule ^(.*)$ http://%1$1 [L,R=301]

score 0 · Answer 3 · answered Feb 09 '09 at 19:00

0

You can have multiple VirtualHosts in a configuration file, so you should change your config to this:

<VirtualHost *:80>
    ServerName domain1.com
    ServerAlias www.domain1.com
</VirtualHost>

<VirtualHost *:80>
    ServerName domain2.com
    ServerAlias www.domain2.com
</VirtualHost>

You can add another VirtualHost for each domain you want to do.

answered Feb 09 '09 at 19:00

Justin Poliey

16,289
7
37
48

This simply sets up aliases for each domain, it does not redirect traffic from www.domain1.com to domain1.com. – Nick Sergeant Feb 09 '09 at 19:20

How to dynamically redirect www-based URLs to non-www URLs with multiple domains in same VirtualHost

3 Answers3

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