I have added to /etc/httpd/conf/httpd.conf the following lanes:

<Directory /home/admin/web/default.domain/public_html>
Options Indexes FollowSymLinks MultiViews
AllowOverride All
Order allow,deny
allow from all
</Directory>

then restarted httpd service

but still my .htaccess has no effect on my website. What it could be? I am using VestaCP