planet/templates/planet_vhosts.conf

<Directory <%= location %> >
       Order deny,allow
       Allow from All
       AllowOverride All
       Options FollowSymlinks   
       Options +Indexes
</Directory>
# Add a permanent redirection for '/*' as '/en/' for english planet
<IfModule mod_alias.c>
        RedirectMatch permanent ^/?$ /en/
</IfModule>
1	<Directory <%= location %> >
2	Order deny,allow
3	Allow from All
4	AllowOverride All
5	Options FollowSymlinks
6	Options +Indexes
7	</Directory>
8	# Add a permanent redirection for '/*' as '/en/' for english planet
9	<IfModule mod_alias.c>
10	RedirectMatch permanent ^/?$ /en/
11	</IfModule>