DOS Taxonomy

subnet spoofing: Generate random addresses within a given address space
random spoofing: Generate 32-bit numbers and stamp packets with them.
fixed spoofing: The spoofed address is the address of the target.

server application: the attack is targeted to a specific application on a server
network access: the attack is used to overload or crash the communication mechanism of a network
infrastructure: the motivation of this attack is a crucial service of a global internet operation, for example core router

application
-> small number of packets -> big effect
application attacks:
DoS bug: Design flaw allowing one Machine to disrupt a service
Dos flood: Command botnet to generate flood of requests
sample Dos at different layers: link, TCP/UDP, application