Identifying Open Ports with Nmap
You can go to the previous blog to see about how to use nmap in advance.
TCP SYN SCAN (-sS)
TCP connect() SCAN (-sT)
TCP FIN SCAN (-sF)
TCP XMAS TREE SCAN (-sX)
TCP NULL SCAN (-sN)
TCP PING SCAN (-sP)
VERSION DETECTION SCAN (-sV)
UDP SCAN (-sU)
IP PROTOCOL SCAN (-sO)
TCP ACK SCAN (-sA)
TCP WINDOW SCAN (-sW)
IDLESCAN (-sI )
Step 1
Step 2.
Step 3.
FTP BOUNCE ATTACK (-b )
