Problema con .htaccess

Ciao a tutti ho un problema con l'accesso al mio forum.
Se metto questo indirizzo brainbook.altervista.org/forum da errore invece se metto brainbook.altervista.org/forum/index.php riesco ad accedere.
Volevo fare un redirect in modo da poter accedere al forum seplicemente dall'indirizzo brainbook.altervista.org ma mi sa che ho fatto qualche errore nel file .htaccess che ora non riesco a trovare.
Il mio file .htaccess è:
<IfModule mod_rewrite.c>
RewriteEngine on

#
# Uncomment the statement below if URL rewriting doesn't
# work properly. If you installed phpBB in a subdirectory
# of your site, properly set the argument for the statement.
# e.g.: if your domain is test.com and you installed phpBB
# in http://www.test.com/phpBB/index.php you have to set
# the statement RewriteBase /phpBB/
#
#RewriteBase /forum/
#
# Uncomment the statement below if you want to make use of
# HTTP authentication and it does not already work.
# This could be required if you are for example using PHP via Apache CGI.
#
#RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]

#
# The following 3 lines will rewrite URLs passed through the front controller
# to not require app.php in the actual URL. In other words, a controller is
# by default accessed at /app.php/my/controller, but can also be accessed at
# /my/controller
#
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ app.php [QSA,L]


#
# If symbolic links are not already being followed,
# uncomment the line below.
# http://anothersysadmin.wordpress.com...th-apache-228/
#
#Options +FollowSymLinks
</IfModule>

# Apache content negotation tries to interpret non-existent paths as files if
# MultiViews is enabled. This will however cause issues with paths containg
# dots, e.g. for the cron tasks
<IfModule mod_negotiation.c>
Options -MultiViews
</IfModule>

# With Apache 2.4 the "Order, Deny" syntax has been deprecated and moved from
# module mod_authz_host to a new module called mod_access_compat (which may be
# disabled) and a new "Require" syntax has been introduced to mod_authz_host.
# We could just conditionally provide both versions, but unfortunately Apache
# does not explicitly tell us its version if the module mod_version is not
# available. In this case, we check for the availability of module
# mod_authz_core (which should be on 2.4 or higher only) as a best guess.
<IfModule mod_version.c>
<IfVersion < 2.4>
<Files "config.php">
Order Allow,Deny
Deny from All
</Files>
<Files "common.php">
Order Allow,Deny
Deny from All
</Files>
</IfVersion>
<IfVersion >= 2.4>
<Files "config.php">
Require all denied
</Files>
<Files "common.php">
Require all denied
</Files>
</IfVersion>
</IfModule>
<IfModule !mod_version.c>
<IfModule !mod_authz_core.c>
<Files "config.php">
Order Allow,Deny
Deny from All
</Files>
<Files "common.php">
Order Allow,Deny
Deny from All
</Files>
</IfModule>
<IfModule mod_authz_core.c>
<Files "config.php">
Require all denied
</Files>
<Files "common.php">
Require all denied
</Files>
</IfModule>
</IfModule>

Graizie

Salve,
a me risulta funzionare correttamente il redirect.

Se io metto come indirizzo brainbook.altervista.org, ottengo il redirect a brainbook.altervista.org/forum/.

Unica cosa che ho notato, è che finchè non si dà il consenso sul banner della policy, il forum non completa il caricamento.

Comunque si ricordi anche di aggiornare la cache del browser quando fa verifiche di questo tipo, al fine di non avere falsi risultati.

Cordiali saluti.

Grazie mi ero scordato di cancellare la cache, maledetta cache.
Sono anche riuscito a spostare la cartella del forum.