THere is a domain name that point to my web site. When you enter that domain name you see my web site 1:1 just diferent domain name appear. Also if I access site its exactly the same as if I enter mine, post, topics are all the same...
How are technicaly called these kind of problems?
Is there any way that I block this in Cpanel, how?
It looks like the other domain which is showing up the same page as yours is parked on your site, do confirm with your hosting provider that there are no such settings at their end as its unlikely that the same content can show up otherwise without any configuration at the server end. And to unblock it all such settings will have to be removed from the Apache configuration file at your host.