WordPress MU

[NOTE: This was designed for subdomain instalations]

Hi, I'm currently using 2 domains on my MU instalation:

http://losblogs.cl

and

http://losblogs.net

I started using first the .CL domain and after a couple of months, I switch the complete instalation to the .NET domain.

The Problem was, I need the old .CL URLS to resolve on the .NET adress for traffic, RSS and other related stuf.

I found a preatty clever way to manage this situation using apache2 mod_rewrite.

How To:

The situation is the Following

Main Domian: MAIN.NET
Secondary Domain (It Will redirect to Main): Secondary.COM

Virtual Host file for Secondary.COM

<VirtualHost Secondary.COM>

DocumentRoot /home/foo/bar
DirectoryIndex index.php index.htm
ServerName Secondary.COM
ServerAlias http://www.Secondary.COM
RedirectMatch (.*)$ http://MAIN.NET$1
RedirectMatch (.*)/$ http://MAIN.NET$1
RedirectMatch (.*).php$ http://MAIN.NET$1.php

<Directory "/home/foo/bar">

Options +FollowSymLinks
AllowOverride All
allow from all
RewriteEngine On
RewriteCond %{REQUEST_METHOD} ^(TRACE|TRACK)
RewriteRule .* - [F]
RewriteRule !^(..*|/)$ %{REQUEST_URI}/ [R=301,L]

</Directory>
   </VirtualHost>

This will redirect all the requests to Secondary.com to Main.NET, for example:

http://exampleblog.secondary.com/wp-admin/index.php

Will change to:

http://exampleblog.MAIN.NET/wp-admin/index.php

You can test it on my domains:

Main: http://losblogs.NET
Secondary (redirecting): http://losblogs.CL

http://losblogs.cl/blog/2007/04/20/gom-player-alternativa-gratis-para-ver-dvds/

It will redirect to:

http://losblogs.net/blog/2007/04/20/gom-player-alternativa-gratis-para-ver-dvds/

other example:

http://thedigitalman.losblogs.cl/2005/04/

Will redirect to:

http://thedigitalman.losblogs.NET/2005/04/

I hope this can help those ppl who has a 2 or more domains for their MU instalation.

Cheers

PD: You can check the full Virtualhost file on txt format here:

http://losblogs.net/images/rewrite_url.txt

This might be simpler

ServerName http://www.main.com
ServerAlias main.com http://www.secondary.com secondary.com

Options +FollowSymLinks
RewriteEngine On

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