Setting up Server Aliases

Depending on the server software you use for hosting your site (Apache, IIS, etc), different set up steps are necessary to make your server respond properly to requests coming via your sub-domain alias (http://something.2static.it). In general, what you need to do is to set up "something.2static.it" as an alias for "mydomain.tld".

Self Hosting (Apache)

In Apache, this is done by simply adding a "ServerAlias" record and specifying "something.2static.it". It might look something like this:

<VirtualHost 8.12.16.201:80>
	ServerName mydomain.tld
	ServerAlias www.mydomain.tld
	ServerAlias something.2static.it  # this is the line to add
	DocumentRoot ...
	...
</VirtualHost>

Managed Hosting

If you use a hosting company that manages your account, you will need to ask them to set this up for you. Here's generally how you should phrase the question so they know what you need: "I have obtained another domain name that I want to use for my existing site http://mydomain.tld. I already have that domain name's DNS set up and pointing at the correct IP address. Now, I just need to set up an ALIAS so this second domain name pulls up the exact same site as http://mydomain.tld. My goal is: I want to be able to pull up my site in a browser with either of the two domain names."

NOTE: My most important suggestion when dealing with a hosting provider through help is to NOT try to get the discussion side-tracked with an explanation of WHY you have obtained this new domain, or what it's purpose is. It will probably confuse the matter on their part and lead you down the wrong path. Simply telling them "Hey, I've obtained an alternate domain that I want to use for my existing site" should be enough specific for them to help you out.

CPanel, Self-service hosting management

You may also use a hosting company that provides self-service hosting management, such as CPanel or some other type of control panel you can log in to and manage things. There's a wide variety of different ways that this type of "Alias" functionality may be labeled and exposed in such control panels. It may be called "Alias", "ServerAlias", or even "Domain Parking". If you are unable to find any such suitable options, contact your hosting provider through their help/forums and ask them that question in the previous section "Managed Hosting" about how to set something like that up.