WordPress MU (Mutiple User) allows unlimited, separate, individual blogs to exist on one installation, in one hosting acount.
And each individual blog can have a unique domain name with the help of Donncha's Domain Mapping plugin.
The installation of the plugin requires a few additional steps. Here's how to do it.
1.. Download the WordPress Mu domain mapping Plugin
2. UnZip it
3. After you unzip, you will see just three files:
domain_mapping.php
readme.txt
sunrise.php
4. FTP to your WordPress MU site, and upload the file named "domain_mapping.php" to the mu-plugins folder. Do not upload it to the regular plugins folder.

5. In the host panel of your FTP program, move up a level to your wp-content folder. Upload the file named "sunrise.php" to your wp-content folder.

6. In the host panel of your FTP program, move up to the root level of your WordPress Installation. Find the file named wp-config.php
7. Use the edit fieature of your FTP program to edit the wp-config.php file online. The only edit you need to make is to "uncomment" the line that looks like this
"// uncomment this to enable wp-content/sunrise.php support
//define( 'SUNRISE', 'on' );
And the way you "uncomment" it is to remove the two " //" before the line that reads //define( 'SUNRISE', 'on' );
Remove the two // and save.

8. Close your FTP program and return to your WordPress MU site.
Click Manage -> Domain Mapping
You'll know the Domain Mapping plugin is ready to use when you see this form ready to be filled in.




I'm in love with Cher. This is Techie Heaven! Keep 'em coming, bay-bay. I'm paying close attention here... :-)
Greek it is all Greek to me...
I was on Donncha's personal blog yesterday, saw how his name is supposed to be pronounced... last name was even more surprising than the first to me.
Maureen, Greek can be a lovely language if you take the tme to learn it (LOL). Just teasing. ;-)
Thank you C!
Maureen, I've been wondering about the correct pronounciation of that last name. I'd better head over to his blog and check it out.
For any readers who may not know what we are talking about: Donncha O Caoimh is a software developer, and is recognized worldwide as one of the Great Masters of all things WordPress and WordPress Mu.
Just a tip, but you've left your db password visibile on your config file screenshot. You might want to remove it and now change it, because it's a big welcome mat to hackers the way it is.
(I'm the andrea_r from the forums and from http://wpmututorials.com)
Hi andrea .... Oops. Sheesh!! Just a little oversight there. :-) It's fixed now. Thanks!!!
Wow Andrea_R is a WordPress guardian angel. What a blessing.