With httpd Apache 2.4.x is is more simple to do stuff than with 2.2.x
Like forcing the www. in front of a domain. Apache now supports the If Elseif Else :-) Pretty nice!
Light example
<If "$req{Host} != 'www.example.com'">
RedirectMatch (.*) http://www.example.com$1
</If>
Easy, isn’t it?
A bit more old fashion way, so you can use the %{bla} stuff you already know.
<If "%{HTTP_HOST} == 'example.com'">
Redirect permanent / http://www.example.com
</If>
Also nice is the Define Directive.
OK you have to start apache with the -D parameter. Like httpd -D TEST
<IfDefine TEST> Define servername test.example.com </IfDefine> <IfDefine !TEST> Define servername www.example.com Define SSL </IfDefine>
If you have some example, please let me know!