Facebook can be blocked on an entire network through the DNS or router. By establishing Facebook as a banned site, it will prevent access for example by employees. Only trusted sites are allowed to be accessed.
Schools block Facebook and other chat systems from their network. Attempting to circumnavigate this will get you expelled.
This depends a lot on which method that has been used to block facebook. You might get in trouble if you manage to bypass this blocade. I am sure that if you can legitimate your use of facebook, then your network manager will make this possible/available to you.
Yes Facebook is a social network.
You cant
As of October 2009, it appears that Facebook is using the following range of IP addresses for chat. I am not certain if they are using these IP addresses for any other features, and I am not certain if they have any alternate ranges.69.63.176.161 - 69.63.176.199(channel01.01.05.sf2p.facebook.com - channel39.01.05.sf2p.facebook.com)If you block these IPs at a firewall, chat should be disabled.
Google it you will find out how to get on to Facebook on the School network.
The Social Network - A movie about the founding of Facebook
Actually, she does.
yes
You can't.
how to block messages of unknown person on facebook
search their name with a different facebook account.