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 links
- Hacker Tools Free Download
- Game Hacking
- Hack Tools For Games
- Pentest Tools Framework
- Pentest Tools For Ubuntu
- What Are Hacking Tools
- Hack Website Online Tool
- How To Hack
- Best Hacking Tools 2020
- Hacking Tools For Windows Free Download
- Pentest Tools Download
- Hack Tool Apk
- Hack Tools Download
- Pentest Tools Bluekeep
- Pentest Tools Nmap
- Hacking Tools For Mac
- Tools Used For Hacking
- How To Hack
- Hack Tools Mac
- Hacker Techniques Tools And Incident Handling
- Pentest Tools Url Fuzzer
- How To Install Pentest Tools In Ubuntu
- Growth Hacker Tools
- Hacker Tools For Ios
- Github Hacking Tools
- Bluetooth Hacking Tools Kali
- Hacks And Tools
- Hacking Tools For Windows 7
- Pentest Tools Tcp Port Scanner
- Hacking App
- Pentest Box Tools Download
- Hackers Toolbox
- Pentest Box Tools Download
- Nsa Hacker Tools
- Pentest Tools Website
- Hack Tools 2019
- New Hack Tools
- Pentest Tools For Mac
- Hacking Tools
- Hacker Tools Windows
- How To Make Hacking Tools
- Hacker Tools Mac
- Hack Tools For Ubuntu
- Hack App
- Pentest Tools For Windows
- Hacker Tools Online
- World No 1 Hacker Software
- Pentest Tools Nmap
- Nsa Hacker Tools
- Hacking Tools For Kali Linux
- Hackers Toolbox
- Pentest Tools Url Fuzzer
- Hacker Tools For Windows
- Hack Tools Mac
- Hacker Search Tools
- Hacking Tools Free Download
- Hacker Tools For Ios
- Hacking Tools Windows
- Hacking Tools For Windows Free Download
- Hacking Tools Mac
- Nsa Hacker Tools
- Growth Hacker Tools
- Best Hacking Tools 2020
- Hacker Search Tools
- Ethical Hacker Tools
- Beginner Hacker Tools
- Hack Tools 2019
- Pentest Tools Website Vulnerability
- Hacker Tools Free
- Physical Pentest Tools
- Hack Tool Apk
- Tools For Hacker
- Hacker Tools Windows
- Hacker Tools Mac
- Hacking Tools For Beginners
- Pentest Tools List
- Pentest Tools For Android
- Ethical Hacker Tools
- How To Install Pentest Tools In Ubuntu
- Pentest Tools Kali Linux
- Kik Hack Tools
- Pentest Tools Windows
- Free Pentest Tools For Windows
- Beginner Hacker Tools
- Hack Rom Tools
- Hacking Tools Mac
- Github Hacking Tools
- Android Hack Tools Github
- Hack Rom Tools
- Pentest Tools Review
- Hacker Tools Software
- Hacking Tools For Games
- Pentest Tools For Android
- Hacker Tools 2019
- Pentest Tools Windows
- Bluetooth Hacking Tools Kali
- Hacker Tools For Ios
- Hacking Tools For Windows 7
- Game Hacking
- Hack Tools For Games
- Hacking Tools For Beginners
- Hacker Tools Windows
- Tools For Hacker
- Hack Tools For Mac
- Hack Tool Apk No Root
- Hacking Tools Software
- Best Hacking Tools 2020
- Hacker Tools Online
- How To Install Pentest Tools In Ubuntu
- Pentest Tools Github
- Github Hacking Tools
- New Hacker Tools
- Pentest Tools For Mac
- Pentest Tools For Android
- Hacking Tools 2020
- Hacker
- Pentest Tools List
- Pentest Tools For Mac
- Hacking App
- Hacker Tools Online
- Hacking Tools Online
- Hacking Tools
- New Hacker Tools
- Pentest Tools For Mac
- Free Pentest Tools For Windows
- Hacker Tools Apk
- Pentest Tools Review
- Best Hacking Tools 2019
- Hack Tools Github
- Best Hacking Tools 2020
- Hacker Tools List
- Hacking Tools Name
- Pentest Tools Apk
- Bluetooth Hacking Tools Kali
- Hacking Tools Online
- Hacker Tools Apk Download
- Hacker Tools Hardware
- Black Hat Hacker Tools
- Beginner Hacker Tools
- Hacking Tools
- Hack Website Online Tool
No comments:
Post a Comment