Nmap Scanning on Backtrack 5 [Detailed Tutorial]

Nmap is a program that scans all of the ports in your computer and check it  whether they are open or not.

So lets start the scanning process in Backtrack 5 Environment.

Ping Scan 

Range Scan 

Stealth Scan (-sS) 

OS SCAN : It showed us which Operating system is running by 

             the host.

TCP SCAN : This scan will show all the open tcp ports . 

ADVANTAGES :

1. Speed
2. Free to use 
3. Don't need priviledges

DISADVANTAGES

1. Easily Detectable and Filterable .

FIN SCAN 

NULL SCAN

UDP SCAN

In udp scanning we use udp scan instead of tcp scan .

Protocol Scan -sO <Target Ip >

IP PROTOCOL SCAN 

This Scan is used to find the ip protocols in use .

ACK (Acknowledgement Scan)