CEH scanning methodology is the important step i.e. scanning for open ports over a network. Port is the technique used to scan for open ports. This methodology performed for the observation of the open and close ports running on the targeted machine. Port scanning gathered a valuable information about the host and the weakness of the system more than ping sweep.
Network Mapping (NMAP)
Basically NMAP stands for Network Mapping. A free open source tool used for scanning ports, service detection, operating system detection and IP address detection of the targeted machine. Moreover, it performs a quick and efficient scanning a large number of machines in a single session to gathered information about ports and system connected to the network. It can be used over UNIX, LINUX and Windows.There are some terminologies which we should understand directly whenever we heard like Open ports, Filtered ports and Unfiltered ports.
Open Ports means the target machine accepts incoming request on that port cause these ports are used to accept packets due to the configuration of TCP and UDP.
Filtered ports means the ports are usually opened but due to firewall or network filtering the nmap doesn't detect the open ports.
Unfiltered means the nmap is unable to determine whether the port is open or filtered while the port is accessible.
Types Of NMAP Scan
Scan Type | Description |
---|---|
Null Scan | This scan is performed by both an ethical hackers and black hat hackers. This scan is used to identify the TCP port whether it is open or closed. Moreover, it only works over UNIX based systems. |
TCP connect | The attacker makes a full TCP connection to the target system. There's an opportunity to connect the specifically port which you want to connect with. SYN/ACK signal observed for open ports while RST/ACK signal observed for closed ports. |
ACK scan | Discovering the state of firewall with the help ACK scan whether it is stateful or stateless. This scan is typically used for the detection of filtered ports if ports are filtered. Moreover, it only works over the UNIX based systems. |
Windows scan | This type of scan is similar to the ACK scan but there is ability to detect an open ports as well filtered ports. |
SYN stealth scan | This malicious attack is mostly performed by attacker to detect the communication ports without making full connection to the network. This is also known as half-open scanning. |
All NMAP Commands
Commands | Scan Performed |
---|---|
-sT | TCP connect scan |
-sS | SYN scan |
-sF | FIN scan |
-sX | XMAS tree scan |
-sN | Null scan |
-sP | Ping scan |
-sU | UDP scan |
-sO | Protocol scan |
-sA | ACK scan |
-sW | Window scan |
-sR | RPC scan |
-sL | List/DNS scan |
-sI | Idle scan |
-Po | Don't ping |
-PT | TCP ping |
-PS | SYN ping |
-PI | ICMP ping |
-PB | ICMP and TCP ping |
-PB | ICMP timestamp |
-PM | ICMP netmask |
-oN | Normal output |
-oX | XML output |
-oG | Greppable output |
-oA | All output |
-T Paranoid | Serial scan; 300 sec between scans |
-T Sneaky | Serial scan; 15 sec between scans |
-T Polite | Serial scan; .4 sec between scans |
-T Normal | Parallel scan |
-T Aggressive | Parallel scan, 300 sec timeout, and 1.25 sec/probe |
-T Insane | Parallel scan, 75 sec timeout, and .3 sec/probe |
How to Scan
You can perform nmap scanning over the windows command prompt followed by the syntax below. For example, If you wanna scan the host with the IP address 192.168.2.1 using a TCP connect scan type, enter this command:nmap 192.168.2.1 –sT
nmap -sT 192.168.2.1
Related news
- Pentest Tools Online
- Pentest Tools Free
- Hacking Tools Windows
- Beginner Hacker Tools
- Pentest Tools Framework
- Hacker Tools Apk Download
- Hacker Tools Github
- Pentest Tools
- Pentest Tools Tcp Port Scanner
- Hacking Tools And Software
- Underground Hacker Sites
- Hacker Tools For Mac
- Beginner Hacker Tools
- Bluetooth Hacking Tools Kali
- Hacking Tools For Pc
- Pentest Tools Find Subdomains
- Hack Tool Apk
- How To Hack
- Hack Tools
- Hacking Tools For Kali Linux
- Hacker Tools Windows
- Hacking Tools Pc
- Pentest Tools Review
- Pentest Tools Tcp Port Scanner
- Github Hacking Tools
- Hacker Tools Free
- Wifi Hacker Tools For Windows
- Blackhat Hacker Tools
- Hacker Tools List
- Hack Tool Apk
- Tools Used For Hacking
- Hacker Tools Mac
- Blackhat Hacker Tools
- Nsa Hack Tools
- Hacker Tools Mac
- Free Pentest Tools For Windows
- Hacker Tool Kit
- Hack Tools For Mac
- Hacking App
- Hack Tools Pc
- Pentest Tools
- Blackhat Hacker Tools
- Pentest Tools Windows
- Hacker Tools Online
- Hacker Tools Mac
- How To Hack
- Pentest Reporting Tools
- Hacker Tools Linux
- Best Hacking Tools 2019
- Hack Tools Mac
- Beginner Hacker Tools
- Hack And Tools
- Black Hat Hacker Tools
- Hacking Tools For Beginners
- Github Hacking Tools
- Hacking Tools For Mac
- Install Pentest Tools Ubuntu
- Pentest Tools Free
- Hack Tools Download
- Hacking Tools Windows 10
- Hack Tool Apk No Root
- Hack Tools Online
- Black Hat Hacker Tools
- How To Make Hacking Tools
- Hacking Tools Software
- Computer Hacker
- What Is Hacking Tools
- Hacking Tools Download
- Pentest Tools Online
- Hackrf Tools
- Pentest Tools Free
- Hacker Techniques Tools And Incident Handling
- Hacking Tools Mac
- Hacker Tools For Windows
- Hacker Tools For Mac
- Hack Tools For Games
- Hacking Tools For Windows 7
- Pentest Tools Linux
- Pentest Tools For Windows
- Hack Tools
- Hacking Tools For Beginners
- Pentest Recon Tools
- Hack Tools For Games
- Hacker Tools
- Pentest Tools Framework
- Best Pentesting Tools 2018
- Hacking Tools Online
- Pentest Tools Framework
- Bluetooth Hacking Tools Kali
- Hackers Toolbox
- Hacking Tools For Mac
- Hacker Tools Hardware
- Pentest Tools Github
- Hack Tool Apk No Root
- How To Hack
- Best Pentesting Tools 2018
- Hackers Toolbox
- Pentest Tools For Ubuntu
- Hackers Toolbox
- Hacker Tools Windows
- Hack Tools Mac
- Free Pentest Tools For Windows
- How To Install Pentest Tools In Ubuntu
- Hack Website Online Tool
- Game Hacking
- Hacker Tool Kit
- Hack Tool Apk No Root
- Hacker Hardware Tools
- Pentest Tools Website Vulnerability
- Computer Hacker
- Pentest Tools For Windows
- Hacking Tools Usb
- Hacker Tools 2020
- Hack App
- Pentest Tools Apk
- Pentest Tools Website
- Nsa Hack Tools Download
- Hacking Tools Windows 10
- Hacking Tools Windows 10
- Tools For Hacker
- Hack Tool Apk No Root
- Pentest Tools Linux
- Hacker Tools Hardware
- Usb Pentest Tools
- Hacks And Tools
- Hacker Tools For Ios
- Hacker Tools Github
- Hack Tools For Mac
- Pentest Reporting Tools
- Pentest Reporting Tools
- Hacking App
- Hacker Tools Apk
- Hack Website Online Tool
- How To Install Pentest Tools In Ubuntu
- Ethical Hacker Tools
- Termux Hacking Tools 2019
No comments:
Post a Comment