RewriteCond %{HTTP:Authorization}  ^(.*)
    RewriteCond %{LA-U:REMOTE_USER}    ^(.*)
    Header add HTTP_X_REMOTE_USER %{LA-U:REMOTE_USER}e
    RewriteRule ^/(.*) \
     http://localhost:7080/VirtualHostBase/http/%{HTTP_HOST}/folder/ldaptest/VirtualHostRoot/$1 [L,P]