If you have mod_status enabled but still got this error (403) when trying to connect from localhost (127.0.0.1) you can should do following:
First, go to /etc/apache2/mods-enabled/status.conf and check that you have all hosts that you want to connect from is added to Allow from, something like this:
<Location /server-status>
SetHandler server-status
Order deny,allow
Deny from all
Allow from 127.0.0.1 ::1
</Location>
Second, create VirtualHost configuration for 127.0.0.1 with following parameters:
<VirtualHost *:80>
ServerAdmin superadmin@somemail.com
ServerName 127.0.0.1
DocumentRoot /var/www
<Directory />
Options FollowSymLinks
AllowOverride All
</Directory>
<Directory /var/www>
Options +FollowSymLinks
AllowOverride None
order allow,deny
allow from all
</Directory>
</VirtualHost>