Joomla 403 forbidden error

Forbidden

You don't have permission to access /index.php on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

#
### İdeal optimizasyon by tmrsk ###
#
### Hata verirse +FollowSymlinks yapin
#
Options FollowSymLinks
#
DirectoryIndex index.php
#
RewriteEngine On
#
### RewriteBase e lütfen dikkat
#
### eger siteniz.com/xyz seklinde ise
#
### /xyz olmalidir,
#
### siteniz.com ise / olarak kalsin
#
RewriteBase /
#
RewriteCond %{REQUEST_URI} (/|\.htm|\.php|\.html|/[^.]*)$ [NC]
#
RewriteCond %{REQUEST_FILENAME} !-f
#
RewriteCond %{REQUEST_FILENAME} !-d
#
RewriteRule ^(.*) index.php
#
### GUVENLIK ###
#
# Mosconfig requestlerini için güvenlik
#
RewriteCond %{QUERY_STRING} mosConfig_[a-zA-Z_]{1,21}(=|\%3D) [OR]
#
# base64culer güvenliği
#
RewriteCond %{QUERY_STRING} base64_encode.*\(.*\) [OR]
#
# Url icinde javascript güvenliği
#
RewriteCond %{QUERY_STRING} (\<|%3C).*script.*(\>|%3E) [NC,OR]
#
# Register globals güvenliği
#
RewriteCond %{QUERY_STRING} GLOBALS(=|\[|\%[0-9A-Z]{0,2}) [OR]
#
# request güvenliği
#
RewriteCond %{QUERY_STRING} _REQUEST(=|\[|\%[0-9A-Z]{0,2})
#
# yönlendirme
#
RewriteRule ^(.*)$ index.php [F,L]

RewriteEngine On

RewriteCond %{REQUEST_URI} (/|\.htm|\.php|\.html|/[^.]*)$ [NC]

RewriteCond %{REQUEST_FILENAME} !-f

RewriteCond %{REQUEST_FILENAME} !-d

RewriteRule (.*) index.php

## Joomla Guvenlik (has nothing to do with SEF/SEO)

## Begin - Rewrite rules to block out some common exploits

## If you experience problems on your site block out the operations listed below

## This attempts to block the most common type of exploit `attempts` to Joomla!

# Block out any script trying to set a mosConfig value through the URL

RewriteCond %{QUERY_STRING} mosConfig_[a-zA-Z_]{1,21}(=|\%3D) [OR]

# Block out any script trying to base64_encode crap to send via URL

#RewriteCond %{QUERY_STRING} base64_encode.*\(.*\) [OR]

# Block out any script that includes a tag in URL

RewriteCond %{QUERY_STRING} (\<|%3C).*script.*(\>|%3E) [NC,OR]

# Block out any script trying to set a PHP GLOBALS variable via URL

RewriteCond %{QUERY_STRING} GLOBALS(=|\[|\%[0-9A-Z]{0,2}) [OR]

# Block out any script trying to modify a _REQUEST variable via URL

RewriteCond %{QUERY_STRING} _REQUEST(=|\[|\%[0-9A-Z]{0,2})

# Send all blocked request to homepage with 403 Forbidden error!

RewriteRule ^(.*)$ index.php [F,L]