[TYPO3] Fix for changing the BE admin url

[Darren Clark]

Hi

The procedure documented to alter the backend url from /typo3 to a new
one involves alterations to the main source code.

http://typo3.org/documentation/document-library/core-documentation/doc_core_inside/current/view/3/10/

On investigation all that needs changing is the defined value
"TYP03_maindir". In php a defined value can only be done once, therefore
instead of changing the scripts in the source I used the
auto_prepend_option to set the value first via .htaccess file

This appears to work correctly, please see:

http://cwebd.co.uk/typo3doc/prepend.phps

Therefore all you need to do is update the .htaccess file to prepend the
file above and alter the symlink typo3 to the new value.

You can then access the admin interface via:

http://yoursite/newadminurl

This should improve security as the admin interface could be any url and
not just /typo3.

I'm still testing this, but I'd welcome your thoughts and if deemed a
good solution the documentation and wiki page
(http://wiki.typo3.org/index.php/Security#Change_the_TYPO3_BE_directory)
could be updated.

--
Darren
Clark Web Development Ltd