More than anything, this is for my own reference, but also for the benefit of jordanbrock...

This comes courtesy http://www.cyberciti.biz/tips/lighttpd-redirect-www-domaincom-to-domain-com.html

For various reason you might want to redirect all traffic coming to www.domain.com to domain.com or vise versa.

This is essential if you want to maintained good structure for search engines (SEO) or to generate accurate stats.

Open your /etc/lighttpd/lighttpd.conf file:

# vi /etc/lighttpd/lighttpd.conf

Find your virtual domain section.

h4. Add following configuration directive if you want to redirect www.domain.com to domain.com

$HTTP["host"] =~ "^www\.(.*)" { url.redirect = ( "^/(.*)" => "http://%1/$1" ) }

h4. Add following configuration directive if you want to redirect domain.com to www.domain.com

$HTTP["host"] =~ "^domain\.com$" { url.redirect = ( "^/(.*)" => "http://www.domain.com/$1" ) }

Close and save the file. Restart the lighttpd web server:

# /etc/init.d/lighttpd restart

Make sure you have mod_redirect in server.modules, then add this to your lighttpd.conf:

$HTTP["host"] =~ "^domain\.com$" {
  url.redirect = (
    "^/(.*)" => "http://www.domain.com/$1",
    ""       => "http://www.domain.com/"
  )
}

I wasn't able to come up with a way to do it in a single rule. It seems that only "" (not even "(.*)") will match the root request.

This single line seems to work for my WP install. I needed to add a couple of redirects and rewrites to handle my RSS feed, since I use Feedburner, but this line does all the heavy lifting...

Place it after server.document-root, either in the main section or in your virtual host sub-sections...

server.error-handler-404 = "/index.php?error=404"