References
1- Port Number
2- Ip layer network admin ( pdf )
3- TCP/IP Tutorial ( pdf )
4- Packet analysis guide ( pdf )
5- Hping
6- Nping
7- Nmap
10- Nmap Idel scan
11- TCP Rfc
12- Zenmap
13- Angryip
14- Masscan
15- Superscan
16- Telnet
17- Netcat
18- Ncat
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