Ethical Hacking Tutorial

I hope by now you guys have installed virtual machine in your system.we will start our tutorial part by part as follows:
 
part 1:-Gathering Network and Host Information:
Scanning and Enumeration
a) Ping Sweep Techniques
           nmap Command Switches
           TCP Communication Flag Types
           Banner Grabbing and OS Fingerprinting Techniques
           Scanning Anonymously

b) Enumeration
           Null Sessions
           SNMP Enumeration
           Windows 2000 DNS Zone Transfer
part 2:System Hacking: Password Cracking, Escalating
Privileges, and Hiding Files
           The Simplest Way to Get a Password
           Types of Passwords
           Passive Online Attacks
           Active Online Attacks
          Offline Attacks
           Nonelectronic Attacks
Remaining part will be mention as we move on part by part..........