What is the use of ssl certificate? (when ssl server is allready available)

Haakon,

If you have your own SSL certificate, you don't have to "share" your host's certificate with everyone else on your server. For example, if you host offers SSL, you will probably have to access your site like:

https://servername.hostsdomain.com/~yourusername/

This allows all users on that machine to access their site securely, and the host only needs to purchase one certificate per server. This is fine for most people.

However, sometimes resellers want to remain completely anonymous, so they will want to get their own certificate. With your own certificate, you can access your site like:

https://secure.yourdomain.com/

Of course, you don't have to use secure.yourdomain.com, you can use any hostname you like (yourdomain.com even).

Hope that helps.

Regards,
Matt
mlightner@site5.com

Oh, thanks for very good explenation Matt