Intrusion-prevention systems which work on content recognition cannot block behavior based DoS attacks.
A DoS attack can be perpetrated in a number of ways.
It should be noted however, that in this case the victim of the DoS attack still would need to pay for the excessive bandwidth.
I find the idea of a DoS attack being akin to a sit-in somewhat ridiculous.
In the 1990s and early 2000s, many web companies were hit by DoS attacks.
For example, Microsoft was hit DoS attacks in early 2001.
But a DoS attack still is a serious threat, wouldn't you agree?
A DoS attack affects all websites on the server or network.
These schemes will work as long as the DoS attacks are something that can be prevented by using them.
Most routers can be easily overwhelmed under a DoS attack.