What is Nmap?

Anonimbirix

Katılımcı Üye
15 Mar 2021
783
165
hey everyone welcome to my post. the topic we will discuss today ; What is Nmap?

nmap is information gathering tool port scan site scan etc. Allows you to exploit by providing opportunities and searching open . It is generally an active information gathering tool. wiki post; Nmap is a security scanner developed by computer networks expert Gordon Lyon (Fyodor). It can map the scanned network and observe the status of services running on network machines, operating systems, ports.
as far as you can tell : Nmap use cases
To have information about the systems on the scanned network (such as the port, the application running on it, etc.).
In extracting the network topology.
Performing penetration tests.
In testing the necessary settings when preparing any network.
Network inventory holding, mapping, maintenance and management.


How to Use Nmap

Nmap is preinstalled with the Kali Linux operating system.

To be able to use Nmap, you must be familiar with command line interfaces. Automated rules only help you with basic scanning. When creating the basic nmap command, the sequence “nmap {scan type} {options} {destination}” is based.
To start Nmap, simply type the "nmap" command on the command line.




You can write “nmap -help” and “nmap -h” commands on the command line to learn all the commands and functions in using Nmap.



Nmap Targeting:

nmap x.x.x.x - only scans for an ip address

nmap x.x.x.x-20
Scans ip addresses including x and

nmap x.x.x.x 0/24
Scans 256 ip adress

nmap turkhackteam.org
- scans domain name

In Nmap scanning, targets can be identified at different ranges. For example:

Nmap -sP x.x.x. 0/24 - scan with ping

Nmap -PS x.x.x. 0/24 - Scanning with TCP-Syn

Nmap -PA x.x.x. 0/24 - Scanning with TCP-ACK

Nmap -PE x.x.x. 0/24 - Scanning with ICMP Echo Reguest

Nmap -PU x.x.x. 0/24 - Scan with UDP Ping

Nmap -PR x.x.x. 0/24 - Scan with ARP Ping

Nmap -traceroute x.x.x. 0/24 - performs the path analysis of the package

Nmap -R x.x.x. 0/24 - Discovers hostname from ip addresses

Nmap -system-dns x.x.x. 0/24 - uses DNS servers in the operating system


Nmap Discovery Study:

Analyzes of devices on the network that are standing at that time can be made.

Port Scanning Techniques:

TCP Connect Scan: It sends SYN packet to connect to the destination port, in return, if a SYN/ACK packet comes in, it connects to the port by sending an ACK packet and reports that the port is open, if an RST response is received to the SYN packet, it reports that the port is closed. All sessions opened in this type of scan are logged on the target system.

SYN Scan: SYN scan session does not open completely, when SYN/ACK packet comes in return of SYN packet, it reports that the port is open and logs out by sending RST packet, if the port is closed, the target sends an RST reply.

UDP Scan: Analyzes whether UDP ports are open or closed. If the response to the UDP packet is “ICMP Port Unreacable”, the port is closed; If it is a UDP packet, it is understood that the port is open.


Port Detection and Discovery Scans:
You can learn which ports are open, the services running on these open ports and detailed information about them.

Nmap -sS -p50 x.x.x.x - Scanning with 50 port

Nmap -sS -p1-75 x.x.x.x - Scans ports 1 to 75

Nmap -sS -p7,9,54 x.x.x.x - Scans ports 7,9 and 54

Nmap -sS -p- x.x.x.x - scans all ip addresses on the network

---------------------------------------------------------------------------------------------------
Nmap -sS x.x.x.x - SYN port analysis

Nmap -sU x.x.x.x - UDP port analysis

Nmap -sT x.x.x.x - TCP connection port analysis

Nmap -sS -O x.x.x.x - operating system analysis

Nmap -sS -A x.x.x.x - operating system version analysis


Script Engine:

Nmap -Sc x.x.x.x - uses all scripts during scanning

Nmap -script "http*" - uses http scripts

Source : Nmap - Vikipedi.

Nmap Nedir ve Nasıl Kullanılır?
 
Moderatör tarafında düzenlendi:

'The Wolf

Uzman üye
22 Nis 2021
1,309
852
Gökyüzü
hey everyone welcome to my post. the topic we will discuss today ; What is Nmap?

nmap is information gathering tool port scan site scan etc. Allows you to exploit by providing opportunities and searching open . It is generally an active information gathering tool. wiki post; Nmap is a security scanner developed by computer networks expert Gordon Lyon (Fyodor). It can map the scanned network and observe the status of services running on network machines, operating systems, ports.
as far as you can tell : Nmap use cases
To have information about the systems on the scanned network (such as the port, the application running on it, etc.).
In extracting the network topology.
Performing penetration tests.
In testing the necessary settings when preparing any network.
Network inventory holding, mapping, maintenance and management.


How to Use Nmap

Nmap is preinstalled with the Kali Linux operating system.

To be able to use Nmap, you must be familiar with command line interfaces. Automated rules only help you with basic scanning. When creating the basic nmap command, the sequence “nmap {scan type} {options} {destination}” is based.
To start Nmap, simply type the "nmap" command on the command line.




You can write “nmap -help” and “nmap -h” commands on the command line to learn all the commands and functions in using Nmap.



Nmap Targeting:

nmap x.x.x.x - only scans for an ip address

nmap x.x.x.x-20
Scans ip addresses including x and

nmap x.x.x.x 0/24
Scans 256 ip adress

nmap turkhackteam.org
- scans domain name

In Nmap scanning, targets can be identified at different ranges. For example:

Nmap -sP x.x.x. 0/24 - scan with ping

Nmap -PS x.x.x. 0/24 - Scanning with TCP-Syn

Nmap -PA x.x.x. 0/24 - Scanning with TCP-ACK

Nmap -PE x.x.x. 0/24 - Scanning with ICMP Echo Reguest

Nmap -PU x.x.x. 0/24 - Scan with UDP Ping

Nmap -PR x.x.x. 0/24 - Scan with ARP Ping

Nmap -traceroute x.x.x. 0/24 - performs the path analysis of the package

Nmap -R x.x.x. 0/24 - Discovers hostname from ip addresses

Nmap -system-dns x.x.x. 0/24 - uses DNS servers in the operating system


Nmap Discovery Study:

Analyzes of devices on the network that are standing at that time can be made.

Port Scanning Techniques:

TCP Connect Scan: It sends SYN packet to connect to the destination port, in return, if a SYN/ACK packet comes in, it connects to the port by sending an ACK packet and reports that the port is open, if an RST response is received to the SYN packet, it reports that the port is closed. All sessions opened in this type of scan are logged on the target system.

SYN Scan: SYN scan session does not open completely, when SYN/ACK packet comes in return of SYN packet, it reports that the port is open and logs out by sending RST packet, if the port is closed, the target sends an RST reply.

UDP Scan: Analyzes whether UDP ports are open or closed. If the response to the UDP packet is “ICMP Port Unreacable”, the port is closed; If it is a UDP packet, it is understood that the port is open.


Port Detection and Discovery Scans:
You can learn which ports are open, the services running on these open ports and detailed information about them.

Nmap -sS -p50 x.x.x.x - Scanning with 50 port

Nmap -sS -p1-75 x.x.x.x - Scans ports 1 to 75

Nmap -sS -p7,9,54 x.x.x.x - Scans ports 7,9 and 54

Nmap -sS -p- x.x.x.x - scans all ip addresses on the network

---------------------------------------------------------------------------------------------------
Nmap -sS x.x.x.x - SYN port analysis

Nmap -sU x.x.x.x - UDP port analysis

Nmap -sT x.x.x.x - TCP connection port analysis

Nmap -sS -O x.x.x.x - operating system analysis

Nmap -sS -A x.x.x.x - operating system version analysis


Script Engine:

Nmap -Sc x.x.x.x - uses all scripts during scanning

Nmap -script "http*" - uses http scripts

Source : Nmap - Vikipedi.
Nmap Nedir ve Nasıl Kullanılır?
why did you stop speaking turkish and start speaking english??
Well done my friend, well done
 

Anonimbirix

Katılımcı Üye
15 Mar 2021
783
165
++++ Thank you very much to the moderator who edited my post.
can tell me how to center the posts? I thought but I couldn't. always stood on the left
 

Dolyetyus

International Team Leader
21 Nis 2020
910
80
Leiden
++++ Thank you very much to the moderator who edited my post.
can tell me how to center the posts? I thought but I couldn't. always stood on the left
First of all, you are welcome. Secondly, centering the posts is easy. You should use the button which stands between the List and Paragraph Format. Then you can choose whether you center or insert the whole text.
 

THT SON MESAJLAR

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