http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=388303596

Method It does not require additional program's. This is the path to the file "hosts"

As far as I know in other versions of "Windows" to "Windows XP" exactly this way will be like that. What about other "OS" I do not know)

All we need is to open the Hosts file and paste there the following line:

31.13.93.3 ru.dota2.com blog.dota2.com
#


Here is an example of how it should be done:
Open the file using notepad, or another text editor
create a free line by pressing "Enter" and paste there this text, as in the picture
Save the like in the picture
Here, you can now use Facebook while playing in DOTA)

After all the action it should look something like this: