Problem: block access to multiple sites(just in case I will explain that this onlay games, but that's not what I harmful), but it must be done so as not to arouse suspicion. Edit the hosts 127.0.0.1 is not an option, because the IP localhost is explicitly set in the error page. The simplest that comes to mind is emulation unavailable after timeout, but how to do it don't know. Help please :)
upd. OMG, the feeling that not everyone read the description, and limited only by the header
In this regard: khosts not to offer!!
upd2 the Problem is the styling. I believe that all the online browser games are sometimes unavailable, and they have their mistakes on this subject. The idea was to extract them, but it is long and not too easy
upd3 Most important thing is to do this is not be me what I have to explain to the woman, so the decision want to find easier. Therefore most interested in the emulation unavailable, timed out