Conditional URL rewriting

How can I use URL rewriting in .htaccess to redirect to different domains depending on the URL?

Examples:

• http://ON开发者_Go百科E/ to http://TWO/
• http://ONE/some_content to http://THREE/some_content

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This ought to work if you want to redirect the client:

# http://ONE/ to http://TWO/
RewriteCond %{HTTP_HOST}    =one
RewriteRule ^$             http://two/ [R,L]

# http://ONE/some_content to http://THREE/some_content
RewriteCond %{HTTP_HOST}    =one
RewriteRule ^(.+)$         http://three/$1 [R,L]

If you prefer to proxy the requests, change the R flag to a P instead.