Let us learn the types of DoS attack.

Types Of DoS Attack :

[1] Flood Attack :

• This is the earliest form of DoS attack and is also known as ping flood attack.
• Flood attack is a type of DoS attack that overwhelms the server by flooding with immense amount of traffic than the victim can handle.
• The types of flood attack are UDP flood attack, ICMP flood attack and HTTP flood attack.

[2] Ping Of Death Attack :

• Ping of death attack works by sending oversized packet of ICMP to the target machine which is vulnerable and is unable to handle the packet due to its size.
• This can cause the machine to crash, freeze, or reboot.

[3] SYN Attack :

• SYN attack is a type of attack that objective is to make the targeted server overwhelmed by traffic in the TCP three-way handshake process and make unavailable for legitimate traffic.
• The attacker send overwhelming SYN packets to the targeted server from random IP address.

[4] Teardrop Attack :

• Teardrop attack is a type of attack the attacker sends fragments of packets to the target server, which are unable to be reform or reassemble due to the vulnerability.
• This causes the server to crash or become unresponsive.

[5] Smurf Attack :

• Smurf attack is the attack where the attacker sends a large number of ICMP ping messages to targeted network to overwhelm it.
• This attack results in the targeted machine to become inoperable.

[6] Nuke Attack :

• Nuke attack is an old type of DoS attack that exploit the computer network by sending corrupted packets to a target machine.
• This attack can cause the machine to slow down, crash.