Drupal default .htaccess file

When you are facing some problem in drupal then you need to copy this default .htaccess file in document root.
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#
# Apache/PHP/Drupal settings:
#
# Protect files and directories from prying eyes.
<Files ~ “(\.(inc|module|pl|sh|sql|theme|engine|xtmpl)|Entries|Repositories|Root|scripts|updates)$”>
Order deny,allow
Deny from all
</Files>
# Set some options.
Options -Indexes
Options +FollowSymLinks
# Customized error messages.
ErrorDocument 404 /index.php
# Set the default handler.
DirectoryIndex index.php
# Override PHP settings. More exist in sites/default/settings.php, but
# the following cannot be changed at runtime. The first IfModule is
# for Apache 1.3, the second for Apache 2.
<IfModule mod_php4.c>
php_value magic_quotes_gpc                0
php_value register_globals                0
php_value session.auto_start              0
</IfModule>
<IfModule sapi_apache2.c>
php_value magic_quotes_gpc                0
php_value register_globals                0
php_value session.auto_start              0
</IfModule>
# Reduce the time dynamically generated pages are cache-able.
<IfModule mod_expires.c>
ExpiresByType text/html A1
</IfModule>
# Various rewrite rules.
<IfModule mod_rewrite.c>
RewriteEngine on
# Modify the RewriteBase if you are using Drupal in a subdirectory and
# the rewrite rules are not working properly.
# RewriteBase /var/www/web1
# Rewrite old-style URLs of the form ‘node.php?id=x’.
#RewriteCond %{REQUEST_FILENAME} !-f
#RewriteCond %{REQUEST_FILENAME} !-d
#RewriteCond %{QUERY_STRING} ^id=([^&]+)$
RewriteRule node.php index.php?q=node/view/%1 [L]
# Rewrite old-style URLs of the form ‘module.php?mod=x’.
#RewriteCond %{REQUEST_FILENAME} !-f
#RewriteCond %{REQUEST_FILENAME} !-d
#RewriteCond %{QUERY_STRING} ^mod=([^&]+)$
RewriteRule module.php index.php?q=%1 [L]
# Rewrite current-style URLs of the form ‘index.php?q=x’.
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?q=$1 [L,QSA]
</IfModule>
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