Re-direction from HTTP to HTTPS

[eluser]Angel Lay[/eluser]
I got this message from trustwave.

Remediation: All web application communications containing sensitive information should be transmitted using SSL/TLS (HTTPS). If re-direction from HTTP to HTTPS is utilized in an attempt to remediate this finding, please ensure that such re-direction occurs on the server side of the system (for example via the use of the HTTP "Location" header element) and that re-direction is not reliant upon the client (browser) side

Then I use the following code in .htaccess

Code:

RewriteEngine On
    RewriteCond %{HTTPS} !=on
    RewriteRule ^(.*) https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
    RewriteCond %{HTTPS} !=off

but I cann't go through.

Any one know this one ?
Thanks

[eluser]weboap[/eluser]
you are redirecting based on HTTPS, can you try based on server port

Code:

RewriteCond %{SERVER_PORT} !^443$