Securing a Webserver

I am trying to achieve this:
http://httpd.apache.org/docs/2.0/ssl...tml#allclients

I have a known set of users that I can provide certificates to for authentication.

However, this configuration option requires a server reboot. I am working on a hosted enviroment, all I have is .htaccess control.

So, I am looking for a similar solution in a PHP Linux MySQL hosted enviroment. Any ideas?

You're not going to be able to configure those types of options without root access to the server. Apache needs quite a few of those options in httpd.conf (or its includes).

If you can't do it in a shared hosting environment (They typically only provide SSL for encryption / server authentication not client authentication), you'll need a dedicated one.

Slarty