1. Syn Flooding Sends TCP connections to a machine faster than it can process themSends TCP connections to a machine faster than it can process them Each Packet has a fake addressEach Packet has a fake address Machine responds and times outMachine responds and times out

2. Syn Flooding Change TCP Stacks so timeout is quickChange TCP Stacks so timeout is quick Allows Machine to process attack fasterAllows Machine to process attack faster

3. Smurf Named after first program to carry out the attackNamed after first program to carry out the attack Sends ICMP (Internet Control Message Protocol) packets to a network of computersSends ICMP (Internet Control Message Protocol) packets to a network of computers Each packet has a fake return addressEach packet has a fake return address Fake address is that of victimFake address is that of victim Victim is the flooded by Machines replying to the ICMP packetsVictim is the flooded by Machines replying to the ICMP packets

4. Smurf Disable IP-Directed broadcastingDisable IP-Directed broadcasting Disable ICMP ProtocolDisable ICMP Protocol

5. Buffer Overflow Bug in software or a systemBug in software or a system Attacker exploits this bugAttacker exploits this bug Machine or software crashesMachine or software crashes

6. Buffer Overflow Keep people out of your system or networkKeep people out of your system or network Keep everything up-to-dateKeep everything up-to-date