Performing Active Reconnaissance:with Nmap

1. Download the most current version of Nmap.

http://nmap.org/download.html

2. Open a command prompt and go to the directory that you have installed Nmap in.

Run Nmap ] from the command line to see the various options

Example :

1. Perform a full connect scan on one of the local devices you have identified on your network. The syntax is Nmap -sT IP_Address.

2. Perform a stealth scan on one of the local devices you have identified on your network. The syntax is Nmap -sS IP_Address.

3. Perform a UDP scan on one of the local devices you have identified on your network. The syntax is Nmap -sU IP_Address.

4. Perform a fingerprint scan on one of the local devices you have identified on your network. The syntax is Nmap -O IP_Address.