While in Belarus, you have several options
to connect to the Internet.
Dial-up from your computer
If you bring your computer (say, laptop) with you, it is
possible to set up a dial-up connection to the Internet.
You do not necessarily need a contract to use a dial-up
service in Belarus. You have two options.
Many providers sell so-called "Internet cards"
that have account IDs and passwords valid only for some
specified period. The back side of the cards has the
information on how to set-up your computer (only in
Russian) to connect to the Internet.
Belarusian state telecom company provides the service
where users can connect to the Internet simply by dialing
from the computer a special line and using any ID or
password. Usage costs are then billed to the phone line
Visit Internet Cafй
There is a network of Internet Cafйs in Belarus that
provide its visitors with access to the Internet. Read
more about it here.