Вот рабочий образец, надеюсь, это поможет.
RewriteLog "/var/log/httpd/rewrite_log"
RewriteLogLevel 3
Alias /dummy.org /tmp/dummy.org
<Directory /tmp/dummy.org>
Options FollowSymLinks
RewriteEngine On
RewriteRule ^index.htm /en/somepage [R=301]
</Directory>
Если я использую "http://127.0.0.1/dummy.org/index.htm", он переписывается в" http://127.0.0.1/en/somepage"
(3) [perdir /tmp/dummy.org/] strip per-dir prefix: /tmp/dummy.org/index.htm -> index.htm
(3) [perdir /tmp/dummy.org/] applying pattern '^index.htm' to uri 'index.htm'
(2) [perdir /tmp/dummy.org/] rewrite 'index.htm' -> '/en/somepage'
(2) [perdir /tmp/dummy.org/] explicitly forcing redirect with http://127.0.0.1/en/somepage
(1) [perdir /tmp/dummy.org/] escaping http://127.0.0.1/en/somepage for redirect
(1) [perdir /tmp/dummy.org/] redirect to http://127.0.0.1/en/somepage [REDIRECT/301]
Если я использую "http://127.0.0.1/dummy.org/someotherfolder/index.htm", он не будет переписан
(3) [perdir /tmp/dummy.org/] add path info postfix: /tmp/dummy.org/someotherfolder -> /tmp/dummy.org/someotherfolder/index.htm
(3) [perdir /tmp/dummy.org/] strip per-dir prefix: /tmp/dummy.org/someotherfolder/index.htm -> someotherfolder/index.htm
(3) [perdir /tmp/dummy.org/] applying pattern '^index.htm' to uri 'someotherfolder/index.htm'
(1) [perdir /tmp/dummy.org/] pass through /tmp/dummy.org/someotherfolder
-Martin