Manage to always keep your DNS the same.
When you connect to Internet, what you are really doing is obtaining an
IP address and DNS, that are basically the data that are assigned to your operator so that you can exchange information over the net. The problem is that, to save costs, the operators don't always
assign the same IPs and DNS, they vary them, so if you need have total access to and from the same net, it will be essential to you to use that same program with
Dynamic DNS.
There are many services that offer the possibility to
manage a fictitious fix IP or DNS installing an application on your computer that periodically indicates if your
IP and DNS have changer and updated, well
Dynamic DNS is one of those applications. Thus, you will be able to have a
mail, web or FTP server on your own computer, accessible from anywhere in the world.
With
Dynamic DNS your will be able to configure any
fix IP service, to help you avoid the restriction of the operators, accomplishing a stable connection and the possibility to have servers of nearly any service in you own house.
Note: The Lite version only allows one service at the time.