The trick we do here is to make one virtualhost for the “main” domain you wish indexed (and shown in browsers etc) and another one for all the other domains that will simply redirect to the main domain.
RedirectMatch permanent /(.*) http://www.example.com/$1
... other stuffs ...
Setting a default charset using .htaccess is a simple thing to do
However sometimes there is a need to unset default charset as well (for instance if the AddDefaultCharset is set in the apache config and this is causing problems).
This is very easy to do just edit the .htaccess file and add a line that says
Using a .htaccess file it is not hard to limit access to a directory to only certain ips.
deny from all
allow from 10.8.0
allow from 81.257.140.212
Using only a partial ip (like 10.8.0) means a wildcard so all of the 10.8.0.0/24 rage is allowed.
If you do not wish to change character encoding for the entire server, but only one site (or only one directory) then this is possible to do using .htaccess.
If you only wish to do this to php or htm files (and not all files)
If you wish to modify the mime-type as well as the encoding (on html files in this example)
AddType 'text/html; charset=UTF-8' html