Presentation is loading. Please wait.

Presentation is loading. Please wait.

Nmap Experiment. Outline Introduction NMAP - NMAP advantages - NMAP capability of support NMAP Install - Install of under Windows - Install of under Linux.

Similar presentations


Presentation on theme: "Nmap Experiment. Outline Introduction NMAP - NMAP advantages - NMAP capability of support NMAP Install - Install of under Windows - Install of under Linux."— Presentation transcript:

1 Nmap Experiment

2 Outline Introduction NMAP - NMAP advantages - NMAP capability of support NMAP Install - Install of under Windows - Install of under Linux NMAP Experiment - Use NMAP - Parameter : -sT - Parameter : -sS Conclusions 2

3 Introduction A Port Scanner software on unix By NMAP scan - Quickly know remote host executive services - Guess remote host’s Operation System & Version - Subnet scanning =>To detect the subnet on which hosts and each of detection of its services 3

4 Nmap pros & function Nmap advantages - Support scanning of variety protocols - Support most of existing system - Operate interface simply - Simple instructions, powerful functions - Free software Nmap function - TCP SYN scanning - TCP ftp proxy scanning - ICMP scanning - TCP ping scanning 4

5 TCP Flag Definition 5 Flag SYNThe beginning of a connection ACKAcknowledge receipt of a previous packet or transmission FINClose a TCP connection RSTAbort a TCP connection

6 Three-way handshake ClientServer SYN SYN/ACK ACK Connection Established ClientServer FIN ACK/FIN ACK ConnectionClosed Connect Disconnect 6

7 Nmap Install

8 Windows 8

9 Linux Fedora : (Root Permission) yum install Nmap or wget Ubuntu : sudo apt-get install Nmap 9

10 Instruction : nmap –sT Target host Scanning for TCP Ports 10

11 SYN Scan Nmap sends to Host Port Nmap receives from Host Port Nmap Assumes SYNSYN/ACKPort is open Host is up SYNRSTPort is closed Host is up SYNNothingPort is blocked by firewall Or Host is down Instruction : nmap –sS Target host 11

12 Instruction : namp –p [1-1024] Target host Scanning Host Port 12

13 Instruction : nmap –O Target host OS detection 13

14 Conclusions Nmap is a useful and free security detective tool Through Nmap provide detailed information that can understand host deeply and also avoid unexpected security vulnerabilities Other scanning tools - Netscantools - Superscan - IPEYE - WUPS 14


Download ppt "Nmap Experiment. Outline Introduction NMAP - NMAP advantages - NMAP capability of support NMAP Install - Install of under Windows - Install of under Linux."

Similar presentations


Ads by Google