301 redirect one site in multi-site installation I have a drupal 6 installation that is hosting numerous sites. They're all located in the sites/ folder. Like: sites/site-1 sites/site-2, etc.

One of these sites has been discontinued, and we need to redirect from it to a new domain name.

Placing a .htaccess file in the sites/site-1 folder does not work.

How can I redirect ONLY THIS ONE SITE out of a multisite installation to a new domain name?
In the root .htaccess file is a set of rewrite rules. You can add a rule to that to redirect to the new site. 

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


untested, but should be about right.